diff --git a/README.md b/README.md
index 0c8b25d..590fe1a 100644
--- a/README.md
+++ b/README.md
@@ -1,20 +1,27 @@
-# CVE-SIGMA Auto Generator
+# CVE-SIGMA Auto Generator (Enhanced)
 
-An automated platform that fetches CVE data and automatically generates SIGMA rules for threat detection.
+An advanced automated platform that processes comprehensive CVE data and generates enhanced SIGMA rules for threat detection using curated exploit intelligence.
 
-## Features
+## 🚀 Enhanced Features
 
-- **Automated CVE Fetching**: Regularly polls the NVD (National Vulnerability Database) for CVEs from July 2025
-- **GitHub Exploit Analysis**: Automatically searches GitHub for exploit code related to each CVE
-- **Intelligent SIGMA Rule Generation**: Creates SIGMA rules based on CVE characteristics AND actual exploit code
-- **Exploit-Based Detection**: Enhanced rules using real indicators extracted from GitHub exploits
-- **Modern Web Interface**: React-based UI for browsing CVEs and managing SIGMA rules
-- **Real-time Updates**: Background tasks keep CVE data current with current 2025 vulnerabilities
-- **Rule Templates**: Configurable templates for different types of vulnerabilities
-- **MITRE ATT&CK Mapping**: Automatic mapping to MITRE ATT&CK techniques
-- **API Testing**: Built-in NVD API connectivity testing
-- **Enhanced Error Handling**: Robust fallback mechanisms and detailed logging
-- **Docker Compose**: Easy deployment and orchestration
+### Data Processing
+- **Bulk NVD Processing**: Downloads and processes complete NVD JSON datasets (2002-2025)
+- **nomi-sec PoC Integration**: Uses curated PoC data from github.com/nomi-sec/PoC-in-GitHub
+- **Incremental Updates**: Efficient updates using NVD modified/recent feeds
+- **Quality Assessment**: Advanced PoC quality scoring with star count, recency, and relevance analysis
+
+### Intelligence Generation  
+- **Enhanced SIGMA Rules**: Creates rules using real exploit indicators from curated PoCs
+- **Quality Tiers**: Excellent, Good, Fair, Poor, Very Poor classification system
+- **Smart Template Selection**: AI-driven template matching based on PoC characteristics
+- **Advanced Indicator Extraction**: Processes, files, network, registry, and command patterns
+- **MITRE ATT&CK Mapping**: Automatic technique identification based on exploit analysis
+
+### User Experience
+- **Modern Web Interface**: React-based UI with enhanced bulk processing controls
+- **Real-time Monitoring**: Live job tracking and progress monitoring
+- **Comprehensive Statistics**: PoC coverage, quality metrics, and processing status
+- **Bulk Operations Dashboard**: Centralized control for all data processing operations
 
 ## Architecture
 
diff --git a/backend/bulk_seeder.py b/backend/bulk_seeder.py
new file mode 100644
index 0000000..89e78ed
--- /dev/null
+++ b/backend/bulk_seeder.py
@@ -0,0 +1,340 @@
+"""
+Bulk Data Seeding Coordinator
+Orchestrates the complete bulk seeding process using NVD JSON feeds and nomi-sec PoC data
+"""
+
+import asyncio
+import logging
+from datetime import datetime
+from typing import Optional
+from sqlalchemy.orm import Session
+from nvd_bulk_processor import NVDBulkProcessor
+from nomi_sec_client import NomiSecClient
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+class BulkSeeder:
+    """Coordinates bulk seeding operations"""
+    
+    def __init__(self, db_session: Session):
+        self.db_session = db_session
+        self.nvd_processor = NVDBulkProcessor(db_session)
+        self.nomi_sec_client = NomiSecClient(db_session)
+    
+    async def full_bulk_seed(self, start_year: int = 2002, 
+                           end_year: Optional[int] = None,
+                           skip_nvd: bool = False,
+                           skip_nomi_sec: bool = False) -> dict:
+        """
+        Perform complete bulk seeding operation
+        
+        Args:
+            start_year: Starting year for NVD data (default: 2002)
+            end_year: Ending year for NVD data (default: current year)
+            skip_nvd: Skip NVD bulk processing (default: False)
+            skip_nomi_sec: Skip nomi-sec PoC synchronization (default: False)
+        
+        Returns:
+            Dictionary containing operation results
+        """
+        if end_year is None:
+            end_year = datetime.now().year
+        
+        results = {
+            'start_time': datetime.utcnow(),
+            'nvd_results': None,
+            'nomi_sec_results': None,
+            'total_time': None,
+            'status': 'running'
+        }
+        
+        logger.info(f"Starting full bulk seed operation ({start_year}-{end_year})")
+        
+        try:
+            # Phase 1: NVD Bulk Processing
+            if not skip_nvd:
+                logger.info("Phase 1: Starting NVD bulk processing...")
+                nvd_results = await self.nvd_processor.bulk_seed_database(
+                    start_year=start_year,
+                    end_year=end_year
+                )
+                results['nvd_results'] = nvd_results
+                logger.info(f"Phase 1 complete: {nvd_results['total_processed']} CVEs processed")
+            else:
+                logger.info("Phase 1: Skipping NVD bulk processing")
+            
+            # Phase 2: nomi-sec PoC Synchronization
+            if not skip_nomi_sec:
+                logger.info("Phase 2: Starting nomi-sec PoC synchronization...")
+                nomi_sec_results = await self.nomi_sec_client.bulk_sync_all_cves(
+                    batch_size=50  # Smaller batches for API stability
+                )
+                results['nomi_sec_results'] = nomi_sec_results
+                logger.info(f"Phase 2 complete: {nomi_sec_results['total_pocs_found']} PoCs found")
+            else:
+                logger.info("Phase 2: Skipping nomi-sec PoC synchronization")
+            
+            # Phase 3: Generate Enhanced SIGMA Rules
+            logger.info("Phase 3: Generating enhanced SIGMA rules...")
+            sigma_results = await self.generate_enhanced_sigma_rules()
+            results['sigma_results'] = sigma_results
+            logger.info(f"Phase 3 complete: {sigma_results['rules_generated']} rules generated")
+            
+            results['status'] = 'completed'
+            results['end_time'] = datetime.utcnow()
+            results['total_time'] = (results['end_time'] - results['start_time']).total_seconds()
+            
+            logger.info(f"Full bulk seed operation completed in {results['total_time']:.2f} seconds")
+            
+        except Exception as e:
+            logger.error(f"Bulk seed operation failed: {e}")
+            results['status'] = 'failed'
+            results['error'] = str(e)
+            results['end_time'] = datetime.utcnow()
+            
+        return results
+    
+    async def incremental_update(self) -> dict:
+        """
+        Perform incremental update operation
+        
+        Returns:
+            Dictionary containing update results
+        """
+        results = {
+            'start_time': datetime.utcnow(),
+            'nvd_update': None,
+            'nomi_sec_update': None,
+            'status': 'running'
+        }
+        
+        logger.info("Starting incremental update...")
+        
+        try:
+            # Update NVD data using modified/recent feeds
+            logger.info("Updating NVD data...")
+            nvd_update = await self.nvd_processor.incremental_update()
+            results['nvd_update'] = nvd_update
+            
+            # Update PoC data for newly added/modified CVEs
+            if nvd_update['total_processed'] > 0:
+                logger.info("Updating PoC data for modified CVEs...")
+                # Get recently modified CVEs and sync their PoCs
+                recent_cves = await self._get_recently_modified_cves()
+                nomi_sec_update = await self._sync_specific_cves(recent_cves)
+                results['nomi_sec_update'] = nomi_sec_update
+            
+            results['status'] = 'completed'
+            results['end_time'] = datetime.utcnow()
+            
+        except Exception as e:
+            logger.error(f"Incremental update failed: {e}")
+            results['status'] = 'failed'
+            results['error'] = str(e)
+            results['end_time'] = datetime.utcnow()
+        
+        return results
+    
+    async def generate_enhanced_sigma_rules(self) -> dict:
+        """Generate enhanced SIGMA rules using nomi-sec PoC data"""
+        from main import CVE, SigmaRule
+        
+        # Import the enhanced rule generator
+        from enhanced_sigma_generator import EnhancedSigmaGenerator
+        
+        generator = EnhancedSigmaGenerator(self.db_session)
+        
+        # Get all CVEs that have PoC data but no enhanced rules
+        cves_with_pocs = self.db_session.query(CVE).filter(
+            CVE.poc_count > 0
+        ).all()
+        
+        rules_generated = 0
+        rules_updated = 0
+        
+        for cve in cves_with_pocs:
+            try:
+                # Check if we need to generate/update the rule
+                existing_rule = self.db_session.query(SigmaRule).filter(
+                    SigmaRule.cve_id == cve.cve_id
+                ).first()
+                
+                if existing_rule and existing_rule.poc_source == 'nomi_sec':
+                    # Rule already exists and is up to date
+                    continue
+                
+                # Generate enhanced rule
+                rule_result = await generator.generate_enhanced_rule(cve)
+                
+                if rule_result['success']:
+                    if existing_rule:
+                        rules_updated += 1
+                    else:
+                        rules_generated += 1
+                
+            except Exception as e:
+                logger.error(f"Error generating rule for {cve.cve_id}: {e}")
+                continue
+        
+        self.db_session.commit()
+        
+        return {
+            'rules_generated': rules_generated,
+            'rules_updated': rules_updated,
+            'total_processed': len(cves_with_pocs)
+        }
+    
+    async def _get_recently_modified_cves(self, hours: int = 24) -> list:
+        """Get CVEs modified within the last N hours"""
+        from main import CVE
+        
+        cutoff_time = datetime.utcnow() - timedelta(hours=hours)
+        
+        recent_cves = self.db_session.query(CVE).filter(
+            CVE.updated_at >= cutoff_time
+        ).all()
+        
+        return [cve.cve_id for cve in recent_cves]
+    
+    async def _sync_specific_cves(self, cve_ids: list) -> dict:
+        """Sync PoC data for specific CVEs"""
+        total_processed = 0
+        total_pocs_found = 0
+        
+        for cve_id in cve_ids:
+            try:
+                result = await self.nomi_sec_client.sync_cve_pocs(cve_id)
+                total_processed += 1
+                total_pocs_found += result.get('pocs_found', 0)
+                
+                # Small delay to avoid overwhelming the API
+                await asyncio.sleep(0.5)
+                
+            except Exception as e:
+                logger.error(f"Error syncing PoCs for {cve_id}: {e}")
+                continue
+        
+        return {
+            'total_processed': total_processed,
+            'total_pocs_found': total_pocs_found
+        }
+    
+    async def get_seeding_status(self) -> dict:
+        """Get current seeding status and statistics"""
+        from main import CVE, SigmaRule, BulkProcessingJob
+        
+        # Get database statistics
+        total_cves = self.db_session.query(CVE).count()
+        bulk_processed_cves = self.db_session.query(CVE).filter(
+            CVE.bulk_processed == True
+        ).count()
+        
+        cves_with_pocs = self.db_session.query(CVE).filter(
+            CVE.poc_count > 0
+        ).count()
+        
+        total_rules = self.db_session.query(SigmaRule).count()
+        nomi_sec_rules = self.db_session.query(SigmaRule).filter(
+            SigmaRule.poc_source == 'nomi_sec'
+        ).count()
+        
+        # Get recent job status
+        recent_jobs = self.db_session.query(BulkProcessingJob).order_by(
+            BulkProcessingJob.created_at.desc()
+        ).limit(5).all()
+        
+        job_status = []
+        for job in recent_jobs:
+            job_status.append({
+                'id': str(job.id),
+                'job_type': job.job_type,
+                'status': job.status,
+                'created_at': job.created_at,
+                'completed_at': job.completed_at,
+                'processed_items': job.processed_items,
+                'total_items': job.total_items,
+                'failed_items': job.failed_items
+            })
+        
+        return {
+            'database_stats': {
+                'total_cves': total_cves,
+                'bulk_processed_cves': bulk_processed_cves,
+                'cves_with_pocs': cves_with_pocs,
+                'total_rules': total_rules,
+                'nomi_sec_rules': nomi_sec_rules,
+                'poc_coverage': (cves_with_pocs / total_cves * 100) if total_cves > 0 else 0,
+                'nomi_sec_coverage': (nomi_sec_rules / total_rules * 100) if total_rules > 0 else 0
+            },
+            'recent_jobs': job_status,
+            'nvd_data_status': await self._get_nvd_data_status(),
+            'nomi_sec_status': await self.nomi_sec_client.get_sync_status()
+        }
+    
+    async def _get_nvd_data_status(self) -> dict:
+        """Get NVD data status"""
+        from main import CVE
+        
+        # Get year distribution
+        year_counts = {}
+        cves = self.db_session.query(CVE).all()
+        
+        for cve in cves:
+            if cve.published_date:
+                year = cve.published_date.year
+                year_counts[year] = year_counts.get(year, 0) + 1
+        
+        # Get source distribution
+        source_counts = {}
+        for cve in cves:
+            source = cve.data_source or 'unknown'
+            source_counts[source] = source_counts.get(source, 0) + 1
+        
+        return {
+            'year_distribution': year_counts,
+            'source_distribution': source_counts,
+            'total_cves': len(cves),
+            'date_range': {
+                'earliest': min(cve.published_date for cve in cves if cve.published_date),
+                'latest': max(cve.published_date for cve in cves if cve.published_date)
+            } if cves else None
+        }
+
+
+# Standalone script functionality
+async def main():
+    """Main function for standalone execution"""
+    from main import SessionLocal, engine, Base
+    
+    # Create tables
+    Base.metadata.create_all(bind=engine)
+    
+    # Create database session
+    db_session = SessionLocal()
+    
+    try:
+        # Create bulk seeder
+        seeder = BulkSeeder(db_session)
+        
+        # Get current status
+        status = await seeder.get_seeding_status()
+        print(f"Current Status: {status['database_stats']['total_cves']} CVEs in database")
+        
+        # Perform full bulk seed if database is empty
+        if status['database_stats']['total_cves'] == 0:
+            print("Database is empty. Starting full bulk seed...")
+            results = await seeder.full_bulk_seed(start_year=2020)  # Start from 2020 for faster testing
+            print(f"Bulk seed completed: {results}")
+        else:
+            print("Database contains data. Running incremental update...")
+            results = await seeder.incremental_update()
+            print(f"Incremental update completed: {results}")
+            
+    finally:
+        db_session.close()
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
\ No newline at end of file
diff --git a/backend/enhanced_sigma_generator.py b/backend/enhanced_sigma_generator.py
new file mode 100644
index 0000000..c1907fe
--- /dev/null
+++ b/backend/enhanced_sigma_generator.py
@@ -0,0 +1,438 @@
+"""
+Enhanced SIGMA Rule Generator
+Generates improved SIGMA rules using nomi-sec PoC data and traditional indicators
+"""
+
+import json
+import logging
+from datetime import datetime
+from typing import Dict, List, Optional, Tuple
+from sqlalchemy.orm import Session
+import re
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+class EnhancedSigmaGenerator:
+    """Enhanced SIGMA rule generator using nomi-sec PoC data"""
+    
+    def __init__(self, db_session: Session):
+        self.db_session = db_session
+    
+    async def generate_enhanced_rule(self, cve) -> dict:
+        """Generate enhanced SIGMA rule for a CVE using PoC data"""
+        from main import SigmaRule, RuleTemplate
+        
+        try:
+            # Get PoC data
+            poc_data = cve.poc_data or []
+            
+            # Find the best quality PoC
+            best_poc = None
+            if poc_data:
+                best_poc = max(poc_data, key=lambda x: x.get('quality_analysis', {}).get('quality_score', 0))
+            
+            # Select appropriate template based on PoC analysis
+            template = await self._select_template(cve, best_poc)
+            
+            if not template:
+                logger.warning(f"No suitable template found for {cve.cve_id}")
+                return {'success': False, 'error': 'No suitable template'}
+            
+            # Generate rule content
+            rule_content = await self._generate_rule_content(cve, template, poc_data)
+            
+            # Calculate confidence level
+            confidence_level = self._calculate_confidence_level(cve, poc_data)
+            
+            # Store or update SIGMA rule
+            existing_rule = self.db_session.query(SigmaRule).filter(
+                SigmaRule.cve_id == cve.cve_id
+            ).first()
+            
+            rule_data = {
+                'cve_id': cve.cve_id,
+                'rule_name': f"{cve.cve_id} Enhanced Detection",
+                'rule_content': rule_content,
+                'detection_type': template.template_name,
+                'log_source': self._extract_log_source(template.template_name),
+                'confidence_level': confidence_level,
+                'auto_generated': True,
+                'exploit_based': len(poc_data) > 0,
+                'poc_source': 'nomi_sec',
+                'poc_quality_score': best_poc.get('quality_analysis', {}).get('quality_score', 0) if best_poc else 0,
+                'nomi_sec_data': {
+                    'total_pocs': len(poc_data),
+                    'best_poc_quality': best_poc.get('quality_analysis', {}).get('quality_score', 0) if best_poc else 0,
+                    'total_stars': sum(p.get('stargazers_count', 0) for p in poc_data),
+                    'avg_stars': sum(p.get('stargazers_count', 0) for p in poc_data) / len(poc_data) if poc_data else 0
+                },
+                'github_repos': [p.get('html_url', '') for p in poc_data],
+                'exploit_indicators': json.dumps(self._combine_exploit_indicators(poc_data)),
+                'updated_at': datetime.utcnow()
+            }
+            
+            if existing_rule:
+                # Update existing rule
+                for key, value in rule_data.items():
+                    setattr(existing_rule, key, value)
+                logger.info(f"Updated SIGMA rule for {cve.cve_id}")
+            else:
+                # Create new rule
+                new_rule = SigmaRule(**rule_data)
+                self.db_session.add(new_rule)
+                logger.info(f"Created new SIGMA rule for {cve.cve_id}")
+            
+            self.db_session.commit()
+            
+            return {
+                'success': True,
+                'cve_id': cve.cve_id,
+                'template': template.template_name,
+                'confidence_level': confidence_level,
+                'poc_count': len(poc_data),
+                'quality_score': best_poc.get('quality_analysis', {}).get('quality_score', 0) if best_poc else 0
+            }
+            
+        except Exception as e:
+            logger.error(f"Error generating enhanced rule for {cve.cve_id}: {e}")
+            return {'success': False, 'error': str(e)}
+    
+    async def _select_template(self, cve, best_poc: Optional[dict]) -> Optional[object]:
+        """Select the most appropriate template based on CVE and PoC analysis"""
+        from main import RuleTemplate
+        
+        templates = self.db_session.query(RuleTemplate).all()
+        
+        if not templates:
+            logger.warning("No rule templates found in database")
+            return None
+        
+        # Score templates based on relevance
+        template_scores = {}
+        
+        for template in templates:
+            score = 0
+            
+            # Score based on PoC indicators (highest priority)
+            if best_poc:
+                indicators = best_poc.get('exploit_indicators', {})
+                score += self._score_template_poc_match(template, indicators)
+            
+            # Score based on CVE description
+            score += self._score_template_cve_match(template, cve)
+            
+            # Score based on affected products
+            if cve.affected_products:
+                score += self._score_template_product_match(template, cve.affected_products)
+            
+            template_scores[template] = score
+        
+        # Return template with highest score
+        if template_scores:
+            best_template = max(template_scores, key=template_scores.get)
+            logger.info(f"Selected template {best_template.template_name} with score {template_scores[best_template]}")
+            return best_template
+        
+        return None
+    
+    def _score_template_poc_match(self, template: object, indicators: dict) -> int:
+        """Score template based on PoC indicators"""
+        score = 0
+        template_name = template.template_name.lower()
+        
+        # Process-based templates
+        if 'process' in template_name or 'execution' in template_name:
+            if indicators.get('processes') or indicators.get('commands'):
+                score += 30
+        
+        # Network-based templates
+        if 'network' in template_name or 'connection' in template_name:
+            if indicators.get('network') or indicators.get('urls'):
+                score += 30
+        
+        # File-based templates
+        if 'file' in template_name or 'modification' in template_name:
+            if indicators.get('files'):
+                score += 30
+        
+        # PowerShell templates
+        if 'powershell' in template_name:
+            processes = indicators.get('processes', [])
+            if any('powershell' in p.lower() for p in processes):
+                score += 35
+        
+        return score
+    
+    def _score_template_cve_match(self, template: object, cve) -> int:
+        """Score template based on CVE description"""
+        score = 0
+        template_name = template.template_name.lower()
+        description = (cve.description or '').lower()
+        
+        # Keyword matching
+        if 'remote' in description and 'execution' in description:
+            if 'process' in template_name or 'execution' in template_name:
+                score += 20
+        
+        if 'powershell' in description:
+            if 'powershell' in template_name:
+                score += 25
+        
+        if 'network' in description or 'http' in description:
+            if 'network' in template_name:
+                score += 20
+        
+        if 'file' in description or 'upload' in description:
+            if 'file' in template_name:
+                score += 20
+        
+        return score
+    
+    def _score_template_product_match(self, template: object, affected_products: list) -> int:
+        """Score template based on affected products"""
+        score = 0
+        
+        if not template.applicable_product_patterns:
+            return 0
+        
+        for pattern in template.applicable_product_patterns:
+            pattern_lower = pattern.lower()
+            for product in affected_products:
+                product_lower = product.lower()
+                if pattern_lower in product_lower:
+                    score += 10
+                    break
+        
+        return score
+    
+    async def _generate_rule_content(self, cve, template: object, poc_data: list) -> str:
+        """Generate the actual SIGMA rule content"""
+        # Combine all exploit indicators
+        combined_indicators = self._combine_exploit_indicators(poc_data)
+        
+        # Get base template content
+        rule_content = template.template_content
+        
+        # Replace template placeholders
+        replacements = {
+            '{{CVE_ID}}': cve.cve_id,
+            '{{TITLE}}': f"{cve.cve_id} Enhanced Detection",
+            '{{DESCRIPTION}}': self._generate_description(cve, poc_data),
+            '{{LEVEL}}': self._calculate_confidence_level(cve, poc_data).lower(),
+            '{{REFERENCES}}': self._generate_references(cve, poc_data),
+            '{{TAGS}}': self._generate_tags(cve, poc_data),
+            '{{PROCESSES}}': self._format_indicators(combined_indicators.get('processes', [])),
+            '{{FILES}}': self._format_indicators(combined_indicators.get('files', [])),
+            '{{COMMANDS}}': self._format_indicators(combined_indicators.get('commands', [])),
+            '{{NETWORK}}': self._format_indicators(combined_indicators.get('network', [])),
+            '{{URLS}}': self._format_indicators(combined_indicators.get('urls', [])),
+            '{{REGISTRY}}': self._format_indicators(combined_indicators.get('registry', []))
+        }
+        
+        # Apply replacements
+        for placeholder, value in replacements.items():
+            rule_content = rule_content.replace(placeholder, value)
+        
+        # Add enhanced detection based on PoC quality
+        if poc_data:
+            rule_content = self._enhance_detection_logic(rule_content, combined_indicators, poc_data)
+        
+        return rule_content
+    
+    def _combine_exploit_indicators(self, poc_data: list) -> dict:
+        """Combine exploit indicators from all PoCs"""
+        combined = {
+            'processes': [],
+            'files': [],
+            'commands': [],
+            'network': [],
+            'urls': [],
+            'registry': []
+        }
+        
+        for poc in poc_data:
+            indicators = poc.get('exploit_indicators', {})
+            for key in combined.keys():
+                if key in indicators:
+                    combined[key].extend(indicators[key])
+        
+        # Deduplicate and filter
+        for key in combined.keys():
+            combined[key] = list(set(combined[key]))
+            # Remove empty and invalid entries
+            combined[key] = [item for item in combined[key] if item and len(item) > 2]
+        
+        return combined
+    
+    def _generate_description(self, cve, poc_data: list) -> str:
+        """Generate enhanced rule description"""
+        base_desc = f"Detection for {cve.cve_id}"
+        
+        if cve.description:
+            # Extract key terms from CVE description
+            desc_words = cve.description.lower().split()
+            key_terms = [word for word in desc_words if word in [
+                'remote', 'execution', 'injection', 'bypass', 'privilege', 'escalation',
+                'overflow', 'disclosure', 'traversal', 'deserialization'
+            ]]
+            
+            if key_terms:
+                base_desc += f" involving {', '.join(set(key_terms[:3]))}"
+        
+        if poc_data:
+            total_pocs = len(poc_data)
+            total_stars = sum(p.get('stargazers_count', 0) for p in poc_data)
+            base_desc += f" [Enhanced with {total_pocs} PoC(s), {total_stars} stars]"
+        
+        return base_desc
+    
+    def _generate_references(self, cve, poc_data: list) -> str:
+        """Generate references section"""
+        refs = []
+        
+        # Add CVE reference
+        refs.append(f"https://nvd.nist.gov/vuln/detail/{cve.cve_id}")
+        
+        # Add top PoC references (max 3)
+        if poc_data:
+            sorted_pocs = sorted(poc_data, key=lambda x: x.get('stargazers_count', 0), reverse=True)
+            for poc in sorted_pocs[:3]:
+                if poc.get('html_url'):
+                    refs.append(poc['html_url'])
+        
+        return '\\n'.join(f"    - {ref}" for ref in refs)
+    
+    def _generate_tags(self, cve, poc_data: list) -> str:
+        """Generate MITRE ATT&CK tags and other tags"""
+        tags = []
+        
+        # CVE tag
+        tags.append(cve.cve_id.lower())
+        
+        # Add technique tags based on indicators
+        combined_indicators = self._combine_exploit_indicators(poc_data)
+        
+        if combined_indicators.get('processes'):
+            tags.append('attack.t1059')  # Command and Scripting Interpreter
+        
+        if combined_indicators.get('network'):
+            tags.append('attack.t1071')  # Application Layer Protocol
+        
+        if combined_indicators.get('files'):
+            tags.append('attack.t1105')  # Ingress Tool Transfer
+        
+        if any('powershell' in p.lower() for p in combined_indicators.get('processes', [])):
+            tags.append('attack.t1059.001')  # PowerShell
+        
+        # Add PoC quality tags
+        if poc_data:
+            tags.append('exploit.poc')
+            best_poc = max(poc_data, key=lambda x: x.get('quality_analysis', {}).get('quality_score', 0))
+            quality_tier = best_poc.get('quality_analysis', {}).get('quality_tier', 'poor')
+            tags.append(f'poc.quality.{quality_tier}')
+        
+        return '\\n'.join(f"    - {tag}" for tag in tags)
+    
+    def _format_indicators(self, indicators: list) -> str:
+        """Format indicators for SIGMA rule"""
+        if not indicators:
+            return ''
+        
+        # Limit indicators to avoid overly complex rules
+        limited_indicators = indicators[:10]
+        
+        formatted = []
+        for indicator in limited_indicators:
+            # Escape special characters for SIGMA
+            escaped = indicator.replace('\\\\', '\\\\\\\\').replace('*', '\\\\*').replace('?', '\\\\?')
+            formatted.append(f'            - "{escaped}"')
+        
+        return '\\n'.join(formatted)
+    
+    def _enhance_detection_logic(self, rule_content: str, indicators: dict, poc_data: list) -> str:
+        """Enhance detection logic based on PoC quality and indicators"""
+        
+        # If we have high-quality PoCs, add additional detection conditions
+        best_poc = max(poc_data, key=lambda x: x.get('quality_analysis', {}).get('quality_score', 0))
+        quality_score = best_poc.get('quality_analysis', {}).get('quality_score', 0)
+        
+        if quality_score > 60:  # High quality PoC
+            # Add more specific detection conditions
+            if indicators.get('processes') and indicators.get('commands'):
+                additional_condition = """
+        process_and_command:
+            Image|contains: {{PROCESSES}}
+            CommandLine|contains: {{COMMANDS}}"""
+                
+                # Insert before the condition line
+                rule_content = rule_content.replace(
+                    'condition: selection',
+                    additional_condition + '\\n    condition: selection or process_and_command'
+                )
+        
+        return rule_content
+    
+    def _calculate_confidence_level(self, cve, poc_data: list) -> str:
+        """Calculate confidence level based on CVE and PoC data"""
+        score = 0
+        
+        # CVSS score factor
+        if cve.cvss_score:
+            if cve.cvss_score >= 9.0:
+                score += 40
+            elif cve.cvss_score >= 7.0:
+                score += 30
+            elif cve.cvss_score >= 5.0:
+                score += 20
+            else:
+                score += 10
+        
+        # PoC quality factor
+        if poc_data:
+            total_stars = sum(p.get('stargazers_count', 0) for p in poc_data)
+            poc_count = len(poc_data)
+            
+            score += min(total_stars, 30)  # Max 30 points for stars
+            score += min(poc_count * 5, 20)  # Max 20 points for PoC count
+            
+            # Quality tier bonus
+            best_poc = max(poc_data, key=lambda x: x.get('quality_analysis', {}).get('quality_score', 0))
+            quality_tier = best_poc.get('quality_analysis', {}).get('quality_tier', 'poor')
+            
+            tier_bonus = {
+                'excellent': 20,
+                'good': 15,
+                'fair': 10,
+                'poor': 5,
+                'very_poor': 0
+            }
+            score += tier_bonus.get(quality_tier, 0)
+        
+        # Determine confidence level
+        if score >= 80:
+            return 'HIGH'
+        elif score >= 60:
+            return 'MEDIUM'
+        elif score >= 40:
+            return 'LOW'
+        else:
+            return 'INFORMATIONAL'
+    
+    def _extract_log_source(self, template_name: str) -> str:
+        """Extract log source from template name"""
+        template_lower = template_name.lower()
+        
+        if 'process' in template_lower or 'execution' in template_lower:
+            return 'process_creation'
+        elif 'network' in template_lower:
+            return 'network_connection'
+        elif 'file' in template_lower:
+            return 'file_event'
+        elif 'powershell' in template_lower:
+            return 'powershell'
+        elif 'registry' in template_lower:
+            return 'registry_event'
+        else:
+            return 'generic'
\ No newline at end of file
diff --git a/backend/main.py b/backend/main.py
index d1ff519..caf5acd 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -1,7 +1,7 @@
 from fastapi import FastAPI, HTTPException, BackgroundTasks, Depends
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import JSONResponse
-from sqlalchemy import create_engine, Column, String, Text, DECIMAL, TIMESTAMP, Boolean, ARRAY
+from sqlalchemy import create_engine, Column, String, Text, DECIMAL, TIMESTAMP, Boolean, ARRAY, Integer, JSON, func
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.orm import sessionmaker, Session
 from sqlalchemy.dialects.postgresql import UUID
@@ -19,6 +19,16 @@ import base64
 from github import Github
 from urllib.parse import urlparse
 import hashlib
+import logging
+import threading
+
+# Setup logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+# Global job tracking
+running_jobs = {}
+job_cancellation_flags = {}
 
 # Database setup
 DATABASE_URL = os.getenv("DATABASE_URL", "postgresql://cve_user:cve_password@localhost:5432/cve_sigma_db")
@@ -39,6 +49,13 @@ class CVE(Base):
     modified_date = Column(TIMESTAMP)
     affected_products = Column(ARRAY(String))
     reference_urls = Column(ARRAY(String))
+    # Bulk processing fields
+    data_source = Column(String(20), default='nvd_api')  # 'nvd_api', 'nvd_bulk', 'manual'
+    nvd_json_version = Column(String(10), default='2.0')
+    bulk_processed = Column(Boolean, default=False)
+    # nomi-sec PoC fields
+    poc_count = Column(Integer, default=0)
+    poc_data = Column(JSON)  # Store nomi-sec PoC metadata
     created_at = Column(TIMESTAMP, default=datetime.utcnow)
     updated_at = Column(TIMESTAMP, default=datetime.utcnow)
 
@@ -56,6 +73,10 @@ class SigmaRule(Base):
     exploit_based = Column(Boolean, default=False)
     github_repos = Column(ARRAY(String))
     exploit_indicators = Column(Text)  # JSON string of extracted indicators
+    # Enhanced fields for new data sources
+    poc_source = Column(String(20), default='github_search')  # 'github_search', 'nomi_sec', 'manual'
+    poc_quality_score = Column(Integer, default=0)  # Based on star count, activity, etc.
+    nomi_sec_data = Column(JSON)  # Store nomi-sec PoC metadata
     created_at = Column(TIMESTAMP, default=datetime.utcnow)
     updated_at = Column(TIMESTAMP, default=datetime.utcnow)
 
@@ -69,6 +90,23 @@ class RuleTemplate(Base):
     description = Column(Text)
     created_at = Column(TIMESTAMP, default=datetime.utcnow)
 
+class BulkProcessingJob(Base):
+    __tablename__ = "bulk_processing_jobs"
+    
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    job_type = Column(String(50), nullable=False)  # 'nvd_bulk_seed', 'nomi_sec_sync', 'incremental_update'
+    status = Column(String(20), default='pending')  # 'pending', 'running', 'completed', 'failed', 'cancelled'
+    year = Column(Integer)  # For year-based processing
+    total_items = Column(Integer, default=0)
+    processed_items = Column(Integer, default=0)
+    failed_items = Column(Integer, default=0)
+    error_message = Column(Text)
+    job_metadata = Column(JSON)  # Additional job-specific data
+    started_at = Column(TIMESTAMP)
+    completed_at = Column(TIMESTAMP)
+    cancelled_at = Column(TIMESTAMP)
+    created_at = Column(TIMESTAMP, default=datetime.utcnow)
+
 # Pydantic models
 class CVEResponse(BaseModel):
     id: str
@@ -941,12 +979,341 @@ async def get_stats(db: Session = Depends(get_db)):
     total_rules = db.query(SigmaRule).count()
     recent_cves = db.query(CVE).filter(CVE.published_date >= datetime.utcnow() - timedelta(days=7)).count()
     
+    # Enhanced stats with bulk processing info
+    bulk_processed_cves = db.query(CVE).filter(CVE.bulk_processed == True).count()
+    cves_with_pocs = db.query(CVE).filter(CVE.poc_count > 0).count()
+    nomi_sec_rules = db.query(SigmaRule).filter(SigmaRule.poc_source == 'nomi_sec').count()
+    
     return {
         "total_cves": total_cves,
         "total_sigma_rules": total_rules,
-        "recent_cves_7_days": recent_cves
+        "recent_cves_7_days": recent_cves,
+        "bulk_processed_cves": bulk_processed_cves,
+        "cves_with_pocs": cves_with_pocs,
+        "nomi_sec_rules": nomi_sec_rules,
+        "poc_coverage": (cves_with_pocs / total_cves * 100) if total_cves > 0 else 0,
+        "nomi_sec_coverage": (nomi_sec_rules / total_rules * 100) if total_rules > 0 else 0
     }
 
+# New bulk processing endpoints
+@app.post("/api/bulk-seed")
+async def start_bulk_seed(background_tasks: BackgroundTasks, 
+                         start_year: int = 2002, 
+                         end_year: Optional[int] = None,
+                         skip_nvd: bool = False,
+                         skip_nomi_sec: bool = False,
+                         db: Session = Depends(get_db)):
+    """Start bulk seeding process"""
+    
+    async def bulk_seed_task():
+        try:
+            from bulk_seeder import BulkSeeder
+            seeder = BulkSeeder(db)
+            result = await seeder.full_bulk_seed(
+                start_year=start_year,
+                end_year=end_year,
+                skip_nvd=skip_nvd,
+                skip_nomi_sec=skip_nomi_sec
+            )
+            logger.info(f"Bulk seed completed: {result}")
+        except Exception as e:
+            logger.error(f"Bulk seed failed: {e}")
+            import traceback
+            traceback.print_exc()
+    
+    background_tasks.add_task(bulk_seed_task)
+    
+    return {
+        "message": "Bulk seeding process started",
+        "status": "started",
+        "start_year": start_year,
+        "end_year": end_year or datetime.now().year,
+        "skip_nvd": skip_nvd,
+        "skip_nomi_sec": skip_nomi_sec
+    }
+
+@app.post("/api/incremental-update")
+async def start_incremental_update(background_tasks: BackgroundTasks, db: Session = Depends(get_db)):
+    """Start incremental update process"""
+    
+    async def incremental_update_task():
+        try:
+            from bulk_seeder import BulkSeeder
+            seeder = BulkSeeder(db)
+            result = await seeder.incremental_update()
+            logger.info(f"Incremental update completed: {result}")
+        except Exception as e:
+            logger.error(f"Incremental update failed: {e}")
+            import traceback
+            traceback.print_exc()
+    
+    background_tasks.add_task(incremental_update_task)
+    
+    return {
+        "message": "Incremental update process started",
+        "status": "started"
+    }
+
+@app.post("/api/sync-nomi-sec")
+async def sync_nomi_sec(background_tasks: BackgroundTasks, 
+                       cve_id: Optional[str] = None,
+                       batch_size: int = 50,
+                       db: Session = Depends(get_db)):
+    """Synchronize nomi-sec PoC data"""
+    
+    # Create job record
+    job = BulkProcessingJob(
+        job_type='nomi_sec_sync',
+        status='pending',
+        job_metadata={
+            'cve_id': cve_id,
+            'batch_size': batch_size
+        }
+    )
+    db.add(job)
+    db.commit()
+    db.refresh(job)
+    
+    job_id = str(job.id)
+    running_jobs[job_id] = job
+    job_cancellation_flags[job_id] = False
+    
+    async def sync_task():
+        try:
+            job.status = 'running'
+            job.started_at = datetime.utcnow()
+            db.commit()
+            
+            from nomi_sec_client import NomiSecClient
+            client = NomiSecClient(db)
+            
+            if cve_id:
+                # Sync specific CVE
+                if job_cancellation_flags.get(job_id, False):
+                    logger.info(f"Job {job_id} cancelled before starting")
+                    return
+                    
+                result = await client.sync_cve_pocs(cve_id)
+                logger.info(f"Nomi-sec sync for {cve_id}: {result}")
+            else:
+                # Sync all CVEs with cancellation support
+                result = await client.bulk_sync_all_cves(
+                    batch_size=batch_size,
+                    cancellation_flag=lambda: job_cancellation_flags.get(job_id, False)
+                )
+                logger.info(f"Nomi-sec bulk sync completed: {result}")
+            
+            # Update job status if not cancelled
+            if not job_cancellation_flags.get(job_id, False):
+                job.status = 'completed'
+                job.completed_at = datetime.utcnow()
+                db.commit()
+                
+        except Exception as e:
+            if not job_cancellation_flags.get(job_id, False):
+                job.status = 'failed'
+                job.error_message = str(e)
+                job.completed_at = datetime.utcnow()
+                db.commit()
+                
+            logger.error(f"Nomi-sec sync failed: {e}")
+            import traceback
+            traceback.print_exc()
+        finally:
+            # Clean up tracking
+            running_jobs.pop(job_id, None)
+            job_cancellation_flags.pop(job_id, None)
+    
+    background_tasks.add_task(sync_task)
+    
+    return {
+        "message": f"Nomi-sec sync started" + (f" for {cve_id}" if cve_id else " for all CVEs"),
+        "status": "started",
+        "job_id": job_id,
+        "cve_id": cve_id,
+        "batch_size": batch_size
+    }
+
+@app.get("/api/bulk-jobs")
+async def get_bulk_jobs(limit: int = 10, db: Session = Depends(get_db)):
+    """Get bulk processing job status"""
+    
+    jobs = db.query(BulkProcessingJob).order_by(
+        BulkProcessingJob.created_at.desc()
+    ).limit(limit).all()
+    
+    result = []
+    for job in jobs:
+        job_dict = {
+            'id': str(job.id),
+            'job_type': job.job_type,
+            'status': job.status,
+            'year': job.year,
+            'total_items': job.total_items,
+            'processed_items': job.processed_items,
+            'failed_items': job.failed_items,
+            'error_message': job.error_message,
+            'metadata': job.job_metadata,
+            'started_at': job.started_at,
+            'completed_at': job.completed_at,
+            'created_at': job.created_at
+        }
+        result.append(job_dict)
+    
+    return result
+
+@app.get("/api/bulk-status")
+async def get_bulk_status(db: Session = Depends(get_db)):
+    """Get comprehensive bulk processing status"""
+    
+    try:
+        from bulk_seeder import BulkSeeder
+        seeder = BulkSeeder(db)
+        status = await seeder.get_seeding_status()
+        return status
+    except Exception as e:
+        logger.error(f"Error getting bulk status: {e}")
+        return {"error": str(e)}
+
+@app.get("/api/poc-stats")
+async def get_poc_stats(db: Session = Depends(get_db)):
+    """Get PoC-related statistics"""
+    
+    try:
+        from nomi_sec_client import NomiSecClient
+        client = NomiSecClient(db)
+        stats = await client.get_sync_status()
+        
+        # Additional PoC statistics
+        high_quality_cves = db.query(CVE).filter(
+            CVE.poc_count > 0,
+            func.json_extract_path_text(CVE.poc_data, '0', 'quality_analysis', 'quality_score').cast(Integer) > 60
+        ).count()
+        
+        stats.update({
+            'high_quality_cves': high_quality_cves,
+            'avg_poc_count': db.query(func.avg(CVE.poc_count)).filter(CVE.poc_count > 0).scalar() or 0
+        })
+        
+        return stats
+    except Exception as e:
+        logger.error(f"Error getting PoC stats: {e}")
+        return {"error": str(e)}
+
+@app.post("/api/regenerate-rules")
+async def regenerate_sigma_rules(background_tasks: BackgroundTasks, 
+                                force: bool = False,
+                                db: Session = Depends(get_db)):
+    """Regenerate SIGMA rules using enhanced nomi-sec data"""
+    
+    async def regenerate_task():
+        try:
+            from enhanced_sigma_generator import EnhancedSigmaGenerator
+            generator = EnhancedSigmaGenerator(db)
+            
+            # Get CVEs with PoC data
+            cves_with_pocs = db.query(CVE).filter(CVE.poc_count > 0).all()
+            
+            rules_generated = 0
+            rules_updated = 0
+            
+            for cve in cves_with_pocs:
+                # Check if we should regenerate
+                existing_rule = db.query(SigmaRule).filter(
+                    SigmaRule.cve_id == cve.cve_id
+                ).first()
+                
+                if existing_rule and existing_rule.poc_source == 'nomi_sec' and not force:
+                    continue
+                
+                # Generate enhanced rule
+                result = await generator.generate_enhanced_rule(cve)
+                
+                if result['success']:
+                    if existing_rule:
+                        rules_updated += 1
+                    else:
+                        rules_generated += 1
+            
+            logger.info(f"Rule regeneration completed: {rules_generated} new, {rules_updated} updated")
+            
+        except Exception as e:
+            logger.error(f"Rule regeneration failed: {e}")
+            import traceback
+            traceback.print_exc()
+    
+    background_tasks.add_task(regenerate_task)
+    
+    return {
+        "message": "SIGMA rule regeneration started",
+        "status": "started",
+        "force": force
+    }
+
+@app.post("/api/cancel-job/{job_id}")
+async def cancel_job(job_id: str, db: Session = Depends(get_db)):
+    """Cancel a running job"""
+    try:
+        # Find the job in the database
+        job = db.query(BulkProcessingJob).filter(BulkProcessingJob.id == job_id).first()
+        if not job:
+            raise HTTPException(status_code=404, detail="Job not found")
+        
+        if job.status not in ['pending', 'running']:
+            raise HTTPException(status_code=400, detail=f"Cannot cancel job with status: {job.status}")
+        
+        # Set cancellation flag
+        job_cancellation_flags[job_id] = True
+        
+        # Update job status
+        job.status = 'cancelled'
+        job.cancelled_at = datetime.utcnow()
+        job.error_message = "Job cancelled by user"
+        
+        db.commit()
+        
+        logger.info(f"Job {job_id} cancellation requested")
+        
+        return {
+            "message": f"Job {job_id} cancellation requested",
+            "status": "cancelled",
+            "job_id": job_id
+        }
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error(f"Error cancelling job {job_id}: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+@app.get("/api/running-jobs")
+async def get_running_jobs(db: Session = Depends(get_db)):
+    """Get all currently running jobs"""
+    try:
+        jobs = db.query(BulkProcessingJob).filter(
+            BulkProcessingJob.status.in_(['pending', 'running'])
+        ).order_by(BulkProcessingJob.created_at.desc()).all()
+        
+        result = []
+        for job in jobs:
+            result.append({
+                'id': str(job.id),
+                'job_type': job.job_type,
+                'status': job.status,
+                'year': job.year,
+                'total_items': job.total_items,
+                'processed_items': job.processed_items,
+                'failed_items': job.failed_items,
+                'error_message': job.error_message,
+                'started_at': job.started_at,
+                'created_at': job.created_at,
+                'can_cancel': job.status in ['pending', 'running']
+            })
+        
+        return result
+    except Exception as e:
+        logger.error(f"Error getting running jobs: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
 if __name__ == "__main__":
     import uvicorn
     uvicorn.run(app, host="0.0.0.0", port=8000)
diff --git a/backend/nomi_sec_client.py b/backend/nomi_sec_client.py
new file mode 100644
index 0000000..27c8731
--- /dev/null
+++ b/backend/nomi_sec_client.py
@@ -0,0 +1,477 @@
+"""
+Nomi-sec PoC-in-GitHub Integration Client
+Interfaces with the nomi-sec PoC-in-GitHub API for curated exploit data
+"""
+
+import aiohttp
+import asyncio
+import json
+import logging
+from datetime import datetime, timedelta
+from typing import Dict, List, Optional, Tuple
+from sqlalchemy.orm import Session
+from sqlalchemy import and_, or_
+import time
+import re
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+class NomiSecClient:
+    """Client for interacting with nomi-sec PoC-in-GitHub API"""
+    
+    def __init__(self, db_session: Session):
+        self.db_session = db_session
+        self.base_url = "https://poc-in-github.motikan2010.net/api/v1"
+        self.rss_url = "https://poc-in-github.motikan2010.net/rss"
+        
+        # Rate limiting
+        self.rate_limit_delay = 1.0  # 1 second between requests
+        self.last_request_time = 0
+        
+        # Cache for recently fetched data
+        self.cache = {}
+        self.cache_ttl = 300  # 5 minutes
+    
+    async def _make_request(self, session: aiohttp.ClientSession, 
+                          url: str, params: dict = None) -> Optional[dict]:
+        """Make a rate-limited request to the API"""
+        try:
+            # Rate limiting
+            current_time = time.time()
+            time_since_last = current_time - self.last_request_time
+            if time_since_last < self.rate_limit_delay:
+                await asyncio.sleep(self.rate_limit_delay - time_since_last)
+            
+            async with session.get(url, params=params, timeout=30) as response:
+                self.last_request_time = time.time()
+                
+                if response.status == 200:
+                    return await response.json()
+                else:
+                    logger.warning(f"API request failed: {response.status} for {url}")
+                    return None
+                    
+        except Exception as e:
+            logger.error(f"Error making request to {url}: {e}")
+            return None
+    
+    async def get_pocs_for_cve(self, cve_id: str) -> List[dict]:
+        """Get all PoC repositories for a specific CVE"""
+        cache_key = f"cve_{cve_id}"
+        
+        # Check cache
+        if cache_key in self.cache:
+            cached_data, timestamp = self.cache[cache_key]
+            if time.time() - timestamp < self.cache_ttl:
+                return cached_data
+        
+        async with aiohttp.ClientSession() as session:
+            params = {"cve_id": cve_id}
+            data = await self._make_request(session, self.base_url, params)
+            
+            if data and "pocs" in data:
+                pocs = data["pocs"]
+                # Cache the result
+                self.cache[cache_key] = (pocs, time.time())
+                logger.info(f"Found {len(pocs)} PoCs for {cve_id}")
+                return pocs
+            else:
+                logger.info(f"No PoCs found for {cve_id}")
+                return []
+    
+    async def get_recent_pocs(self, limit: int = 100) -> List[dict]:
+        """Get recent PoCs from the API"""
+        async with aiohttp.ClientSession() as session:
+            params = {"limit": limit, "sort": "created_at"}
+            data = await self._make_request(session, self.base_url, params)
+            
+            if data and "pocs" in data:
+                return data["pocs"]
+            else:
+                return []
+    
+    async def get_high_quality_pocs(self, min_stars: int = 5, limit: int = 100) -> List[dict]:
+        """Get high-quality PoCs sorted by star count"""
+        async with aiohttp.ClientSession() as session:
+            params = {"limit": limit, "sort": "stargazers_count"}
+            data = await self._make_request(session, self.base_url, params)
+            
+            if data and "pocs" in data:
+                # Filter by star count
+                filtered_pocs = [
+                    poc for poc in data["pocs"]
+                    if int(poc.get("stargazers_count", "0")) >= min_stars
+                ]
+                return filtered_pocs
+            else:
+                return []
+    
+    async def search_pocs(self, query: str, limit: int = 50) -> List[dict]:
+        """Search for PoCs using a query string"""
+        async with aiohttp.ClientSession() as session:
+            params = {"limit": limit, "q": query}
+            data = await self._make_request(session, self.base_url, params)
+            
+            if data and "pocs" in data:
+                return data["pocs"]
+            else:
+                return []
+    
+    def analyze_poc_quality(self, poc: dict) -> dict:
+        """Analyze the quality of a PoC repository"""
+        quality_score = 0
+        factors = {}
+        
+        # Star count factor (0-40 points)
+        stars = int(poc.get("stargazers_count", "0"))
+        star_score = min(stars * 2, 40)  # 2 points per star, max 40
+        quality_score += star_score
+        factors["star_score"] = star_score
+        
+        # Recency factor (0-20 points)
+        try:
+            updated_at = datetime.fromisoformat(poc.get("updated_at", "").replace('Z', '+00:00'))
+            days_old = (datetime.now(updated_at.tzinfo) - updated_at).days
+            recency_score = max(20 - (days_old // 30), 0)  # Lose 1 point per month
+            quality_score += recency_score
+            factors["recency_score"] = recency_score
+        except:
+            factors["recency_score"] = 0
+        
+        # Description quality factor (0-15 points)
+        description = poc.get("description", "")
+        desc_score = 0
+        if description:
+            desc_score = min(len(description) // 10, 15)  # 1 point per 10 chars, max 15
+        quality_score += desc_score
+        factors["description_score"] = desc_score
+        
+        # Vulnerability description factor (0-15 points)
+        vuln_desc = poc.get("vuln_description", "")
+        vuln_score = 0
+        if vuln_desc:
+            vuln_score = min(len(vuln_desc) // 20, 15)  # 1 point per 20 chars, max 15
+        quality_score += vuln_score
+        factors["vuln_description_score"] = vuln_score
+        
+        # Repository name relevance factor (0-10 points)
+        repo_name = poc.get("name", "").lower()
+        cve_id = poc.get("cve_id", "").lower()
+        name_score = 0
+        if cve_id and cve_id.replace("-", "") in repo_name.replace("-", ""):
+            name_score = 10
+        elif any(keyword in repo_name for keyword in ["exploit", "poc", "cve", "vuln"]):
+            name_score = 5
+        quality_score += name_score
+        factors["name_relevance_score"] = name_score
+        
+        return {
+            "quality_score": quality_score,
+            "factors": factors,
+            "quality_tier": self._get_quality_tier(quality_score)
+        }
+    
+    def _get_quality_tier(self, score: int) -> str:
+        """Get quality tier based on score"""
+        if score >= 80:
+            return "excellent"
+        elif score >= 60:
+            return "good"
+        elif score >= 40:
+            return "fair"
+        elif score >= 20:
+            return "poor"
+        else:
+            return "very_poor"
+    
+    def extract_exploit_indicators(self, poc: dict) -> dict:
+        """Extract exploit indicators from PoC metadata"""
+        indicators = {
+            "processes": [],
+            "files": [],
+            "network": [],
+            "registry": [],
+            "commands": [],
+            "urls": [],
+            "techniques": []
+        }
+        
+        # Extract from description and vulnerability description
+        text_sources = [
+            poc.get("description", ""),
+            poc.get("vuln_description", ""),
+            poc.get("name", "")
+        ]
+        
+        full_text = " ".join(text_sources).lower()
+        
+        # Process patterns
+        process_patterns = [
+            r'\b(cmd\.exe|powershell\.exe|bash|sh|python\.exe|java\.exe)\b',
+            r'\b(createprocess|shellexecute|system)\b',
+            r'\b(reverse.?shell|bind.?shell)\b'
+        ]
+        
+        for pattern in process_patterns:
+            matches = re.findall(pattern, full_text, re.IGNORECASE)
+            indicators["processes"].extend(matches)
+        
+        # File patterns
+        file_patterns = [
+            r'\b([a-zA-Z]:\\[^\\]+\\[^\\]+\.[a-zA-Z0-9]+)\b',  # Windows paths
+            r'\b(/[^/\s]+/[^/\s]+\.[a-zA-Z0-9]+)\b',  # Unix paths
+            r'\b(\w+\.(exe|dll|bat|ps1|py|sh|jar))\b'  # Common executable files
+        ]
+        
+        for pattern in file_patterns:
+            matches = re.findall(pattern, full_text, re.IGNORECASE)
+            if isinstance(matches[0], tuple) if matches else False:
+                indicators["files"].extend([m[0] for m in matches])
+            else:
+                indicators["files"].extend(matches)
+        
+        # Network patterns
+        network_patterns = [
+            r'\b(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\b',  # IP addresses
+            r'\b((?:\d{1,5})|(?:0x[a-fA-F0-9]{1,4}))\b',  # Ports
+            r'\b(http[s]?://[^\s]+)\b'  # URLs
+        ]
+        
+        for pattern in network_patterns:
+            matches = re.findall(pattern, full_text, re.IGNORECASE)
+            if pattern.startswith(r'\b(http'):
+                indicators["urls"].extend(matches)
+            else:
+                indicators["network"].extend(matches)
+        
+        # Command patterns
+        command_patterns = [
+            r'\b(curl|wget|nc|netcat|ncat)\b',
+            r'\b(whoami|id|uname|systeminfo)\b',
+            r'\b(cat|type|more|less)\b'
+        ]
+        
+        for pattern in command_patterns:
+            matches = re.findall(pattern, full_text, re.IGNORECASE)
+            indicators["commands"].extend(matches)
+        
+        # Clean up and deduplicate
+        for key in indicators:
+            indicators[key] = list(set(indicators[key]))
+        
+        return indicators
+    
+    async def sync_cve_pocs(self, cve_id: str) -> dict:
+        """Synchronize PoC data for a specific CVE"""
+        from main import CVE, SigmaRule
+        
+        # Get existing CVE
+        cve = self.db_session.query(CVE).filter(CVE.cve_id == cve_id).first()
+        if not cve:
+            logger.warning(f"CVE {cve_id} not found in database")
+            return {"error": "CVE not found"}
+        
+        # Fetch PoCs from nomi-sec API
+        pocs = await self.get_pocs_for_cve(cve_id)
+        
+        if not pocs:
+            logger.info(f"No PoCs found for {cve_id}")
+            return {"cve_id": cve_id, "pocs_found": 0}
+        
+        # Analyze and store PoC data
+        poc_data = []
+        github_repos = []
+        total_quality_score = 0
+        
+        for poc in pocs:
+            quality_analysis = self.analyze_poc_quality(poc)
+            exploit_indicators = self.extract_exploit_indicators(poc)
+            
+            poc_entry = {
+                "id": poc.get("id"),
+                "name": poc.get("name"),
+                "owner": poc.get("owner"),
+                "full_name": poc.get("full_name"),
+                "html_url": poc.get("html_url"),
+                "description": poc.get("description"),
+                "stargazers_count": int(poc.get("stargazers_count", "0")),
+                "created_at": poc.get("created_at"),
+                "updated_at": poc.get("updated_at"),
+                "quality_analysis": quality_analysis,
+                "exploit_indicators": exploit_indicators
+            }
+            
+            poc_data.append(poc_entry)
+            github_repos.append(poc.get("html_url", ""))
+            total_quality_score += quality_analysis["quality_score"]
+        
+        # Update CVE with PoC data
+        cve.poc_count = len(pocs)
+        cve.poc_data = poc_data
+        cve.updated_at = datetime.utcnow()
+        
+        # Update or create SIGMA rule with enhanced PoC data
+        sigma_rule = self.db_session.query(SigmaRule).filter(
+            SigmaRule.cve_id == cve_id
+        ).first()
+        
+        if sigma_rule:
+            sigma_rule.poc_source = 'nomi_sec'
+            sigma_rule.poc_quality_score = total_quality_score // len(pocs) if pocs else 0
+            sigma_rule.nomi_sec_data = {
+                "total_pocs": len(pocs),
+                "average_quality": total_quality_score // len(pocs) if pocs else 0,
+                "best_poc": max(poc_data, key=lambda x: x["quality_analysis"]["quality_score"]) if poc_data else None,
+                "total_stars": sum(p["stargazers_count"] for p in poc_data)
+            }
+            sigma_rule.github_repos = github_repos
+            sigma_rule.updated_at = datetime.utcnow()
+            
+            # Extract best exploit indicators
+            best_indicators = {}
+            for poc in poc_data:
+                for key, values in poc["exploit_indicators"].items():
+                    if key not in best_indicators:
+                        best_indicators[key] = []
+                    best_indicators[key].extend(values)
+            
+            # Deduplicate and store
+            for key in best_indicators:
+                best_indicators[key] = list(set(best_indicators[key]))
+            
+            sigma_rule.exploit_indicators = json.dumps(best_indicators)
+        
+        self.db_session.commit()
+        
+        logger.info(f"Synchronized {len(pocs)} PoCs for {cve_id}")
+        
+        return {
+            "cve_id": cve_id,
+            "pocs_found": len(pocs),
+            "total_quality_score": total_quality_score,
+            "average_quality": total_quality_score // len(pocs) if pocs else 0,
+            "github_repos": github_repos
+        }
+    
+    async def bulk_sync_all_cves(self, batch_size: int = 100, cancellation_flag: Optional[callable] = None) -> dict:
+        """Synchronize PoC data for all CVEs in database"""
+        from main import CVE, BulkProcessingJob
+        
+        # Create bulk processing job
+        job = BulkProcessingJob(
+            job_type='nomi_sec_sync',
+            status='running',
+            started_at=datetime.utcnow(),
+            job_metadata={'batch_size': batch_size}
+        )
+        self.db_session.add(job)
+        self.db_session.commit()
+        
+        total_processed = 0
+        total_found = 0
+        results = []
+        
+        try:
+            # Get all CVEs from database
+            cves = self.db_session.query(CVE).all()
+            job.total_items = len(cves)
+            self.db_session.commit()
+            
+            # Process in batches
+            for i in range(0, len(cves), batch_size):
+                # Check for cancellation before each batch
+                if cancellation_flag and cancellation_flag():
+                    logger.info("Bulk sync cancelled by user")
+                    job.status = 'cancelled'
+                    job.cancelled_at = datetime.utcnow()
+                    job.error_message = "Job cancelled by user"
+                    break
+                
+                batch = cves[i:i + batch_size]
+                
+                for cve in batch:
+                    # Check for cancellation before each CVE
+                    if cancellation_flag and cancellation_flag():
+                        logger.info("Bulk sync cancelled by user")
+                        job.status = 'cancelled'
+                        job.cancelled_at = datetime.utcnow()
+                        job.error_message = "Job cancelled by user"
+                        break
+                    
+                    try:
+                        result = await self.sync_cve_pocs(cve.cve_id)
+                        total_processed += 1
+                        
+                        if result.get("pocs_found", 0) > 0:
+                            total_found += result["pocs_found"]
+                            results.append(result)
+                        
+                        job.processed_items += 1
+                        
+                        # Small delay to avoid overwhelming the API
+                        await asyncio.sleep(0.5)
+                        
+                    except Exception as e:
+                        logger.error(f"Error syncing PoCs for {cve.cve_id}: {e}")
+                        job.failed_items += 1
+                
+                # Break out of outer loop if cancelled
+                if job.status == 'cancelled':
+                    break
+                
+                # Commit after each batch
+                self.db_session.commit()
+                logger.info(f"Processed batch {i//batch_size + 1}/{(len(cves) + batch_size - 1)//batch_size}")
+            
+            # Update job status (only if not cancelled)
+            if job.status != 'cancelled':
+                job.status = 'completed'
+                job.completed_at = datetime.utcnow()
+            
+            job.job_metadata.update({
+                'total_processed': total_processed,
+                'total_pocs_found': total_found,
+                'cves_with_pocs': len(results)
+            })
+            
+        except Exception as e:
+            job.status = 'failed'
+            job.error_message = str(e)
+            job.completed_at = datetime.utcnow()
+            logger.error(f"Bulk PoC sync job failed: {e}")
+            
+        finally:
+            self.db_session.commit()
+        
+        return {
+            'job_id': str(job.id),
+            'status': job.status,
+            'total_processed': total_processed,
+            'total_pocs_found': total_found,
+            'cves_with_pocs': len(results)
+        }
+    
+    async def get_sync_status(self) -> dict:
+        """Get synchronization status"""
+        from main import CVE, SigmaRule
+        
+        # Count CVEs with PoC data
+        total_cves = self.db_session.query(CVE).count()
+        cves_with_pocs = self.db_session.query(CVE).filter(CVE.poc_count > 0).count()
+        
+        # Count SIGMA rules with nomi-sec data
+        total_rules = self.db_session.query(SigmaRule).count()
+        rules_with_nomi_sec = self.db_session.query(SigmaRule).filter(
+            SigmaRule.poc_source == 'nomi_sec'
+        ).count()
+        
+        return {
+            'total_cves': total_cves,
+            'cves_with_pocs': cves_with_pocs,
+            'poc_coverage': (cves_with_pocs / total_cves * 100) if total_cves > 0 else 0,
+            'total_rules': total_rules,
+            'rules_with_nomi_sec': rules_with_nomi_sec,
+            'nomi_sec_coverage': (rules_with_nomi_sec / total_rules * 100) if total_rules > 0 else 0
+        }
\ No newline at end of file
diff --git a/backend/nvd_bulk_processor.py b/backend/nvd_bulk_processor.py
new file mode 100644
index 0000000..6b5e938
--- /dev/null
+++ b/backend/nvd_bulk_processor.py
@@ -0,0 +1,483 @@
+"""
+NVD JSON Dataset Bulk Processor
+Downloads and processes NVD JSON data feeds for comprehensive CVE seeding
+"""
+
+import requests
+import json
+import gzip
+import zipfile
+import os
+import logging
+from datetime import datetime, timedelta
+from typing import Dict, List, Optional, Tuple
+from sqlalchemy.orm import Session
+from sqlalchemy import and_, or_
+import asyncio
+import aiohttp
+from pathlib import Path
+import hashlib
+import time
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+class NVDBulkProcessor:
+    """Handles bulk downloading and processing of NVD JSON data feeds"""
+    
+    def __init__(self, db_session: Session, data_dir: str = "./nvd_data"):
+        self.db_session = db_session
+        self.data_dir = Path(data_dir)
+        self.data_dir.mkdir(exist_ok=True)
+        self.api_key = os.getenv("NVD_API_KEY")
+        
+        # NVD JSON 2.0 feed URLs
+        self.base_url = "https://nvd.nist.gov/feeds/json/cve/1.1"
+        self.feed_urls = {
+            "modified": f"{self.base_url}/nvdcve-1.1-modified.json.gz",
+            "recent": f"{self.base_url}/nvdcve-1.1-recent.json.gz"
+        }
+        
+        # Rate limiting
+        self.rate_limit_delay = 0.6  # 600ms between requests
+        self.last_request_time = 0
+        
+    def get_year_feed_url(self, year: int) -> str:
+        """Get the URL for a specific year's CVE feed"""
+        return f"{self.base_url}/nvdcve-1.1-{year}.json.gz"
+    
+    def get_meta_url(self, feed_url: str) -> str:
+        """Get the metadata URL for a feed"""
+        return feed_url.replace(".json.gz", ".meta")
+    
+    async def download_file(self, session: aiohttp.ClientSession, url: str, 
+                          destination: Path, check_meta: bool = True) -> bool:
+        """Download a file with metadata checking"""
+        try:
+            # Check if we should download based on metadata
+            if check_meta:
+                meta_url = self.get_meta_url(url)
+                should_download = await self._should_download_file(session, meta_url, destination)
+                if not should_download:
+                    logger.info(f"Skipping {url} - file is up to date")
+                    return True
+            
+            # Rate limiting
+            current_time = time.time()
+            time_since_last = current_time - self.last_request_time
+            if time_since_last < self.rate_limit_delay:
+                await asyncio.sleep(self.rate_limit_delay - time_since_last)
+            
+            # Download the file
+            headers = {}
+            if self.api_key:
+                headers["apiKey"] = self.api_key
+            
+            async with session.get(url, headers=headers, timeout=30) as response:
+                if response.status == 200:
+                    content = await response.read()
+                    destination.write_bytes(content)
+                    logger.info(f"Downloaded {url} -> {destination}")
+                    self.last_request_time = time.time()
+                    return True
+                else:
+                    logger.error(f"Failed to download {url}: HTTP {response.status}")
+                    return False
+                    
+        except Exception as e:
+            logger.error(f"Error downloading {url}: {e}")
+            return False
+    
+    async def _should_download_file(self, session: aiohttp.ClientSession, 
+                                  meta_url: str, destination: Path) -> bool:
+        """Check if file should be downloaded based on metadata"""
+        try:
+            # Download metadata
+            async with session.get(meta_url, timeout=10) as response:
+                if response.status != 200:
+                    return True  # Download if we can't get metadata
+                
+                meta_content = await response.text()
+                
+                # Parse metadata
+                meta_data = {}
+                for line in meta_content.strip().split('\n'):
+                    if ':' in line:
+                        key, value = line.split(':', 1)
+                        meta_data[key.strip()] = value.strip()
+                
+                # Check if local file exists and matches
+                if destination.exists():
+                    local_size = destination.stat().st_size
+                    remote_size = int(meta_data.get('size', 0))
+                    remote_sha256 = meta_data.get('sha256', '')
+                    
+                    if local_size == remote_size and remote_sha256:
+                        # Verify SHA256 if available
+                        local_sha256 = self._calculate_sha256(destination)
+                        if local_sha256 == remote_sha256:
+                            return False  # File is up to date
+                
+                return True  # Download needed
+                
+        except Exception as e:
+            logger.warning(f"Error checking metadata for {meta_url}: {e}")
+            return True  # Download if metadata check fails
+    
+    def _calculate_sha256(self, file_path: Path) -> str:
+        """Calculate SHA256 hash of a file"""
+        sha256_hash = hashlib.sha256()
+        with open(file_path, "rb") as f:
+            for chunk in iter(lambda: f.read(4096), b""):
+                sha256_hash.update(chunk)
+        return sha256_hash.hexdigest()
+    
+    async def download_all_feeds(self, start_year: int = 2002, 
+                               end_year: Optional[int] = None) -> List[Path]:
+        """Download all NVD JSON feeds"""
+        if end_year is None:
+            end_year = datetime.now().year
+        
+        downloaded_files = []
+        
+        async with aiohttp.ClientSession() as session:
+            # Download year-based feeds
+            for year in range(start_year, end_year + 1):
+                url = self.get_year_feed_url(year)
+                filename = f"nvdcve-1.1-{year}.json.gz"
+                destination = self.data_dir / filename
+                
+                if await self.download_file(session, url, destination):
+                    downloaded_files.append(destination)
+            
+            # Download modified and recent feeds
+            for feed_name, url in self.feed_urls.items():
+                filename = f"nvdcve-1.1-{feed_name}.json.gz"
+                destination = self.data_dir / filename
+                
+                if await self.download_file(session, url, destination):
+                    downloaded_files.append(destination)
+        
+        return downloaded_files
+    
+    def extract_json_file(self, compressed_file: Path) -> Path:
+        """Extract JSON from compressed file"""
+        json_file = compressed_file.with_suffix('.json')
+        
+        try:
+            if compressed_file.suffix == '.gz':
+                with gzip.open(compressed_file, 'rt', encoding='utf-8') as f_in:
+                    with open(json_file, 'w', encoding='utf-8') as f_out:
+                        f_out.write(f_in.read())
+            elif compressed_file.suffix == '.zip':
+                with zipfile.ZipFile(compressed_file, 'r') as zip_ref:
+                    zip_ref.extractall(self.data_dir)
+            else:
+                # File is already uncompressed
+                return compressed_file
+                
+            logger.info(f"Extracted {compressed_file} -> {json_file}")
+            return json_file
+            
+        except Exception as e:
+            logger.error(f"Error extracting {compressed_file}: {e}")
+            raise
+    
+    def process_json_file(self, json_file: Path) -> Tuple[int, int]:
+        """Process a single JSON file and return (processed, failed) counts"""
+        from main import CVE, BulkProcessingJob
+        
+        processed_count = 0
+        failed_count = 0
+        
+        try:
+            with open(json_file, 'r', encoding='utf-8') as f:
+                data = json.load(f)
+            
+            cve_items = data.get('CVE_Items', [])
+            logger.info(f"Processing {len(cve_items)} CVEs from {json_file}")
+            
+            for cve_item in cve_items:
+                try:
+                    cve_data = self._extract_cve_data(cve_item)
+                    if cve_data:
+                        self._store_cve_data(cve_data)
+                        processed_count += 1
+                    else:
+                        failed_count += 1
+                        
+                except Exception as e:
+                    logger.error(f"Error processing CVE item: {e}")
+                    failed_count += 1
+            
+            # Commit changes
+            self.db_session.commit()
+            logger.info(f"Processed {processed_count} CVEs, failed: {failed_count}")
+            
+        except Exception as e:
+            logger.error(f"Error processing {json_file}: {e}")
+            self.db_session.rollback()
+            raise
+            
+        return processed_count, failed_count
+    
+    def _extract_cve_data(self, cve_item: dict) -> Optional[dict]:
+        """Extract CVE data from JSON item"""
+        try:
+            cve = cve_item.get('cve', {})
+            impact = cve_item.get('impact', {})
+            
+            cve_id = cve.get('CVE_data_meta', {}).get('ID', '')
+            if not cve_id:
+                return None
+            
+            # Description
+            description_data = cve.get('description', {}).get('description_data', [])
+            description = ''
+            if description_data:
+                description = description_data[0].get('value', '')
+            
+            # CVSS Score
+            cvss_score = None
+            severity = None
+            if 'baseMetricV3' in impact:
+                cvss_v3 = impact['baseMetricV3'].get('cvssV3', {})
+                cvss_score = cvss_v3.get('baseScore')
+                severity = cvss_v3.get('baseSeverity', '').lower()
+            elif 'baseMetricV2' in impact:
+                cvss_v2 = impact['baseMetricV2'].get('cvssV2', {})
+                cvss_score = cvss_v2.get('baseScore')
+                severity = impact['baseMetricV2'].get('severity', '').lower()
+            
+            # Dates
+            published_date = None
+            modified_date = None
+            if 'publishedDate' in cve_item:
+                published_date = datetime.fromisoformat(
+                    cve_item['publishedDate'].replace('Z', '+00:00')
+                )
+            if 'lastModifiedDate' in cve_item:
+                modified_date = datetime.fromisoformat(
+                    cve_item['lastModifiedDate'].replace('Z', '+00:00')
+                )
+            
+            # Affected products (from CPE data)
+            affected_products = []
+            configurations = cve_item.get('configurations', {})
+            for node in configurations.get('nodes', []):
+                for cpe_match in node.get('cpe_match', []):
+                    if cpe_match.get('vulnerable', False):
+                        cpe_uri = cpe_match.get('cpe23Uri', '')
+                        if cpe_uri:
+                            affected_products.append(cpe_uri)
+            
+            # Reference URLs
+            reference_urls = []
+            references = cve.get('references', {}).get('reference_data', [])
+            for ref in references:
+                url = ref.get('url', '')
+                if url:
+                    reference_urls.append(url)
+            
+            return {
+                'cve_id': cve_id,
+                'description': description,
+                'cvss_score': cvss_score,
+                'severity': severity,
+                'published_date': published_date,
+                'modified_date': modified_date,
+                'affected_products': affected_products,
+                'reference_urls': reference_urls,
+                'data_source': 'nvd_bulk',
+                'nvd_json_version': '1.1',
+                'bulk_processed': True
+            }
+            
+        except Exception as e:
+            logger.error(f"Error extracting CVE data: {e}")
+            return None
+    
+    def _store_cve_data(self, cve_data: dict):
+        """Store CVE data in database"""
+        from main import CVE
+        
+        # Check if CVE already exists
+        existing_cve = self.db_session.query(CVE).filter(
+            CVE.cve_id == cve_data['cve_id']
+        ).first()
+        
+        if existing_cve:
+            # Update existing CVE
+            for key, value in cve_data.items():
+                setattr(existing_cve, key, value)
+            existing_cve.updated_at = datetime.utcnow()
+            logger.debug(f"Updated CVE {cve_data['cve_id']}")
+        else:
+            # Create new CVE
+            new_cve = CVE(**cve_data)
+            self.db_session.add(new_cve)
+            logger.debug(f"Created new CVE {cve_data['cve_id']}")
+    
+    async def bulk_seed_database(self, start_year: int = 2002, 
+                               end_year: Optional[int] = None) -> dict:
+        """Perform complete bulk seeding of the database"""
+        from main import BulkProcessingJob
+        
+        if end_year is None:
+            end_year = datetime.now().year
+        
+        # Create bulk processing job
+        job = BulkProcessingJob(
+            job_type='nvd_bulk_seed',
+            status='running',
+            started_at=datetime.utcnow(),
+            job_metadata={
+                'start_year': start_year,
+                'end_year': end_year,
+                'total_years': end_year - start_year + 1
+            }
+        )
+        self.db_session.add(job)
+        self.db_session.commit()
+        
+        total_processed = 0
+        total_failed = 0
+        results = []
+        
+        try:
+            # Download all feeds
+            logger.info(f"Starting bulk seed from {start_year} to {end_year}")
+            downloaded_files = await self.download_all_feeds(start_year, end_year)
+            
+            job.total_items = len(downloaded_files)
+            self.db_session.commit()
+            
+            # Process each file
+            for file_path in downloaded_files:
+                try:
+                    # Extract JSON file
+                    json_file = self.extract_json_file(file_path)
+                    
+                    # Process the JSON file
+                    processed, failed = self.process_json_file(json_file)
+                    
+                    total_processed += processed
+                    total_failed += failed
+                    job.processed_items += 1
+                    
+                    results.append({
+                        'file': file_path.name,
+                        'processed': processed,
+                        'failed': failed
+                    })
+                    
+                    # Clean up extracted file if it's different from original
+                    if json_file != file_path:
+                        json_file.unlink()
+                    
+                    self.db_session.commit()
+                    
+                except Exception as e:
+                    logger.error(f"Error processing {file_path}: {e}")
+                    job.failed_items += 1
+                    total_failed += 1
+                    self.db_session.commit()
+            
+            # Update job status
+            job.status = 'completed'
+            job.completed_at = datetime.utcnow()
+            job.job_metadata.update({
+                'total_processed': total_processed,
+                'total_failed': total_failed,
+                'results': results
+            })
+            
+        except Exception as e:
+            job.status = 'failed'
+            job.error_message = str(e)
+            job.completed_at = datetime.utcnow()
+            logger.error(f"Bulk seed job failed: {e}")
+            
+        finally:
+            self.db_session.commit()
+        
+        return {
+            'job_id': str(job.id),
+            'status': job.status,
+            'total_processed': total_processed,
+            'total_failed': total_failed,
+            'results': results
+        }
+    
+    async def incremental_update(self) -> dict:
+        """Perform incremental update using modified and recent feeds"""
+        from main import BulkProcessingJob
+        
+        # Create incremental update job
+        job = BulkProcessingJob(
+            job_type='incremental_update',
+            status='running',
+            started_at=datetime.utcnow(),
+            job_metadata={'feeds': ['modified', 'recent']}
+        )
+        self.db_session.add(job)
+        self.db_session.commit()
+        
+        total_processed = 0
+        total_failed = 0
+        results = []
+        
+        try:
+            # Download modified and recent feeds
+            async with aiohttp.ClientSession() as session:
+                for feed_name, url in self.feed_urls.items():
+                    filename = f"nvdcve-1.1-{feed_name}.json.gz"
+                    destination = self.data_dir / filename
+                    
+                    if await self.download_file(session, url, destination):
+                        try:
+                            json_file = self.extract_json_file(destination)
+                            processed, failed = self.process_json_file(json_file)
+                            
+                            total_processed += processed
+                            total_failed += failed
+                            
+                            results.append({
+                                'feed': feed_name,
+                                'processed': processed,
+                                'failed': failed
+                            })
+                            
+                            # Clean up
+                            if json_file != destination:
+                                json_file.unlink()
+                                
+                        except Exception as e:
+                            logger.error(f"Error processing {feed_name} feed: {e}")
+                            total_failed += 1
+            
+            job.status = 'completed'
+            job.completed_at = datetime.utcnow()
+            job.job_metadata.update({
+                'total_processed': total_processed,
+                'total_failed': total_failed,
+                'results': results
+            })
+            
+        except Exception as e:
+            job.status = 'failed'
+            job.error_message = str(e)
+            job.completed_at = datetime.utcnow()
+            logger.error(f"Incremental update job failed: {e}")
+            
+        finally:
+            self.db_session.commit()
+        
+        return {
+            'job_id': str(job.id),
+            'status': job.status,
+            'total_processed': total_processed,
+            'total_failed': total_failed,
+            'results': results
+        }
\ No newline at end of file
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 5d590e5..e6440fd 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -12,3 +12,5 @@ pygithub==2.1.1
 gitpython==3.1.40
 beautifulsoup4==4.12.2
 lxml==4.9.3
+aiohttp==3.9.1
+aiofiles
diff --git a/docker-compose.yml b/docker-compose.yml
index 048a4d0..39d185a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,5 +1,3 @@
-version: '3.8'
-
 services:
   db:
     image: postgres:15
@@ -25,6 +23,7 @@ services:
     environment:
       DATABASE_URL: postgresql://cve_user:cve_password@db:5432/cve_sigma_db
       NVD_API_KEY: ${NVD_API_KEY:-}
+      GITHUB_TOKEN: ${GITHUB_TOKEN}
     depends_on:
       db:
         condition: service_healthy
diff --git a/frontend/src/App.js b/frontend/src/App.js
index 0bb35ef..b7a540a 100644
--- a/frontend/src/App.js
+++ b/frontend/src/App.js
@@ -15,6 +15,10 @@ function App() {
   const [activeTab, setActiveTab] = useState('dashboard');
   const [fetchingCves, setFetchingCves] = useState(false);
   const [testResult, setTestResult] = useState(null);
+  const [bulkJobs, setBulkJobs] = useState([]);
+  const [bulkStatus, setBulkStatus] = useState({});
+  const [pocStats, setPocStats] = useState({});
+  const [bulkProcessing, setBulkProcessing] = useState(false);
 
   useEffect(() => {
     fetchData();
@@ -23,15 +27,21 @@ function App() {
   const fetchData = async () => {
     try {
       setLoading(true);
-      const [cvesRes, rulesRes, statsRes] = await Promise.all([
+      const [cvesRes, rulesRes, statsRes, bulkJobsRes, bulkStatusRes, pocStatsRes] = await Promise.all([
         axios.get(`${API_BASE_URL}/api/cves`),
         axios.get(`${API_BASE_URL}/api/sigma-rules`),
-        axios.get(`${API_BASE_URL}/api/stats`)
+        axios.get(`${API_BASE_URL}/api/stats`),
+        axios.get(`${API_BASE_URL}/api/bulk-jobs`),
+        axios.get(`${API_BASE_URL}/api/bulk-status`),
+        axios.get(`${API_BASE_URL}/api/poc-stats`)
       ]);
       
       setCves(cvesRes.data);
       setSigmaRules(rulesRes.data);
       setStats(statsRes.data);
+      setBulkJobs(bulkJobsRes.data);
+      setBulkStatus(bulkStatusRes.data);
+      setPocStats(pocStatsRes.data);
     } catch (error) {
       console.error('Error fetching data:', error);
     } finally {
@@ -39,6 +49,20 @@ function App() {
     }
   };
 
+  const cancelJob = async (jobId) => {
+    try {
+      const response = await axios.post(`${API_BASE_URL}/api/cancel-job/${jobId}`);
+      console.log('Cancel job response:', response.data);
+      // Refresh data after cancelling
+      setTimeout(() => {
+        fetchData();
+      }, 1000);
+    } catch (error) {
+      console.error('Error cancelling job:', error);
+      alert('Failed to cancel job. Please try again.');
+    }
+  };
+
   const handleFetchCves = async () => {
     try {
       setFetchingCves(true);
@@ -73,6 +97,73 @@ function App() {
     }
   };
 
+  const startBulkSeed = async (startYear = 2020, endYear = null) => {
+    try {
+      setBulkProcessing(true);
+      const response = await axios.post(`${API_BASE_URL}/api/bulk-seed`, {
+        start_year: startYear,
+        end_year: endYear
+      });
+      console.log('Bulk seed response:', response.data);
+      // Refresh data after starting
+      setTimeout(() => {
+        fetchData();
+      }, 2000);
+    } catch (error) {
+      console.error('Error starting bulk seed:', error);
+      setBulkProcessing(false);
+    }
+  };
+
+  const startIncrementalUpdate = async () => {
+    try {
+      setBulkProcessing(true);
+      const response = await axios.post(`${API_BASE_URL}/api/incremental-update`);
+      console.log('Incremental update response:', response.data);
+      setTimeout(() => {
+        fetchData();
+        setBulkProcessing(false);
+      }, 2000);
+    } catch (error) {
+      console.error('Error starting incremental update:', error);
+      setBulkProcessing(false);
+    }
+  };
+
+  const syncNomiSec = async (cveId = null) => {
+    try {
+      setBulkProcessing(true);
+      const response = await axios.post(`${API_BASE_URL}/api/sync-nomi-sec`, {
+        cve_id: cveId
+      });
+      console.log('Nomi-sec sync response:', response.data);
+      setTimeout(() => {
+        fetchData();
+        setBulkProcessing(false);
+      }, 2000);
+    } catch (error) {
+      console.error('Error syncing nomi-sec:', error);
+      setBulkProcessing(false);
+    }
+  };
+
+  const regenerateRules = async (force = false) => {
+    try {
+      setBulkProcessing(true);
+      const response = await axios.post(`${API_BASE_URL}/api/regenerate-rules`, {
+        force: force
+      });
+      console.log('Rule regeneration response:', response.data);
+      setTimeout(() => {
+        fetchData();
+        setBulkProcessing(false);
+      }, 2000);
+    } catch (error) {
+      console.error('Error regenerating rules:', error);
+      setBulkProcessing(false);
+    }
+  };
+
   const getSeverityColor = (severity) => {
     switch (severity?.toLowerCase()) {
       case 'critical': return 'bg-red-100 text-red-800';
@@ -93,18 +184,81 @@ function App() {
 
   const Dashboard = () => (
     <div className="space-y-6">
-      <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
+      <div className="grid grid-cols-1 md:grid-cols-5 gap-6">
         <div className="bg-white p-6 rounded-lg shadow">
           <h3 className="text-lg font-medium text-gray-900">Total CVEs</h3>
           <p className="text-3xl font-bold text-blue-600">{stats.total_cves || 0}</p>
+          <p className="text-sm text-gray-500">Bulk: {stats.bulk_processed_cves || 0}</p>
         </div>
         <div className="bg-white p-6 rounded-lg shadow">
           <h3 className="text-lg font-medium text-gray-900">SIGMA Rules</h3>
           <p className="text-3xl font-bold text-green-600">{stats.total_sigma_rules || 0}</p>
+          <p className="text-sm text-gray-500">Nomi-sec: {stats.nomi_sec_rules || 0}</p>
+        </div>
+        <div className="bg-white p-6 rounded-lg shadow">
+          <h3 className="text-lg font-medium text-gray-900">CVEs with PoCs</h3>
+          <p className="text-3xl font-bold text-purple-600">{stats.cves_with_pocs || 0}</p>
+          <p className="text-sm text-gray-500">{(stats.poc_coverage || 0).toFixed(1)}% coverage</p>
         </div>
         <div className="bg-white p-6 rounded-lg shadow">
           <h3 className="text-lg font-medium text-gray-900">Recent CVEs (7d)</h3>
-          <p className="text-3xl font-bold text-purple-600">{stats.recent_cves_7_days || 0}</p>
+          <p className="text-3xl font-bold text-orange-600">{stats.recent_cves_7_days || 0}</p>
+        </div>
+        <div className="bg-white p-6 rounded-lg shadow">
+          <h3 className="text-lg font-medium text-gray-900">High Quality PoCs</h3>
+          <p className="text-3xl font-bold text-indigo-600">{pocStats.high_quality_cves || 0}</p>
+          <p className="text-sm text-gray-500">Avg: {(pocStats.avg_poc_count || 0).toFixed(1)}</p>
+        </div>
+      </div>
+
+      {/* Bulk Processing Controls */}
+      <div className="bg-white rounded-lg shadow p-6">
+        <h2 className="text-xl font-bold text-gray-900 mb-4">Bulk Processing</h2>
+        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
+          <button
+            onClick={() => startBulkSeed(2020)}
+            disabled={bulkProcessing}
+            className={`px-4 py-2 rounded-md text-white ${
+              bulkProcessing 
+                ? 'bg-gray-400 cursor-not-allowed' 
+                : 'bg-blue-600 hover:bg-blue-700'
+            }`}
+          >
+            {bulkProcessing ? 'Processing...' : 'Bulk Seed (2020+)'}
+          </button>
+          <button
+            onClick={startIncrementalUpdate}
+            disabled={bulkProcessing}
+            className={`px-4 py-2 rounded-md text-white ${
+              bulkProcessing 
+                ? 'bg-gray-400 cursor-not-allowed' 
+                : 'bg-green-600 hover:bg-green-700'
+            }`}
+          >
+            {bulkProcessing ? 'Processing...' : 'Incremental Update'}
+          </button>
+          <button
+            onClick={() => syncNomiSec()}
+            disabled={bulkProcessing}
+            className={`px-4 py-2 rounded-md text-white ${
+              bulkProcessing 
+                ? 'bg-gray-400 cursor-not-allowed' 
+                : 'bg-purple-600 hover:bg-purple-700'
+            }`}
+          >
+            {bulkProcessing ? 'Processing...' : 'Sync nomi-sec PoCs'}
+          </button>
+          <button
+            onClick={() => regenerateRules()}
+            disabled={bulkProcessing}
+            className={`px-4 py-2 rounded-md text-white ${
+              bulkProcessing 
+                ? 'bg-gray-400 cursor-not-allowed' 
+                : 'bg-indigo-600 hover:bg-indigo-700'
+            }`}
+          >
+            {bulkProcessing ? 'Processing...' : 'Regenerate Rules'}
+          </button>
         </div>
       </div>
 
@@ -522,6 +676,178 @@ function App() {
     );
   };
 
+  const BulkJobsList = () => (
+    <div className="space-y-6">
+      <div className="flex justify-between items-center">
+        <h1 className="text-2xl font-bold text-gray-900">Bulk Processing Jobs</h1>
+        <button
+          onClick={fetchData}
+          className="bg-blue-600 hover:bg-blue-700 text-white px-4 py-2 rounded-md text-sm"
+        >
+          Refresh
+        </button>
+      </div>
+
+      {/* Bulk Status Overview */}
+      <div className="bg-white rounded-lg shadow p-6">
+        <h2 className="text-lg font-bold text-gray-900 mb-4">System Status</h2>
+        {bulkStatus.database_stats && (
+          <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
+            <div className="text-center">
+              <div className="text-2xl font-bold text-blue-600">{bulkStatus.database_stats.total_cves}</div>
+              <div className="text-sm text-gray-500">Total CVEs</div>
+            </div>
+            <div className="text-center">
+              <div className="text-2xl font-bold text-green-600">{bulkStatus.database_stats.bulk_processed_cves}</div>
+              <div className="text-sm text-gray-500">Bulk Processed</div>
+            </div>
+            <div className="text-center">
+              <div className="text-2xl font-bold text-purple-600">{bulkStatus.database_stats.cves_with_pocs}</div>
+              <div className="text-sm text-gray-500">With PoCs</div>
+            </div>
+            <div className="text-center">
+              <div className="text-2xl font-bold text-indigo-600">{bulkStatus.database_stats.nomi_sec_rules}</div>
+              <div className="text-sm text-gray-500">Enhanced Rules</div>
+            </div>
+          </div>
+        )}
+      </div>
+
+      {/* Running Jobs */}
+      {bulkJobs.some(job => job.status === 'running' || job.status === 'pending') && (
+        <div className="bg-white rounded-lg shadow">
+          <div className="px-6 py-4 border-b border-gray-200">
+            <h2 className="text-lg font-bold text-gray-900">Running Jobs</h2>
+          </div>
+          <div className="divide-y divide-gray-200">
+            {bulkJobs
+              .filter(job => job.status === 'running' || job.status === 'pending')
+              .map((job) => (
+                <div key={job.id} className="px-6 py-4 bg-blue-50">
+                  <div className="flex items-center justify-between">
+                    <div className="flex-1">
+                      <div className="flex items-center space-x-3">
+                        <h3 className="text-lg font-medium text-gray-900">{job.job_type}</h3>
+                        <span className={`inline-flex px-2 py-1 text-xs font-semibold rounded-full ${
+                          job.status === 'running' ? 'bg-blue-100 text-blue-800' :
+                          'bg-gray-100 text-gray-800'
+                        }`}>
+                          {job.status}
+                        </span>
+                      </div>
+                      <div className="mt-2 flex items-center space-x-6 text-sm text-gray-500">
+                        <span>Started: {formatDate(job.started_at)}</span>
+                        {job.year && <span>Year: {job.year}</span>}
+                      </div>
+                      {job.total_items > 0 && (
+                        <div className="mt-2">
+                          <div className="flex items-center space-x-4 text-sm text-gray-600">
+                            <span>Progress: {job.processed_items}/{job.total_items}</span>
+                            {job.failed_items > 0 && (
+                              <span className="text-red-600">Failed: {job.failed_items}</span>
+                            )}
+                          </div>
+                          <div className="mt-1 w-full bg-gray-200 rounded-full h-2">
+                            <div 
+                              className="bg-blue-600 h-2 rounded-full" 
+                              style={{ width: `${(job.processed_items / job.total_items) * 100}%` }}
+                            ></div>
+                          </div>
+                        </div>
+                      )}
+                    </div>
+                    <div className="flex-shrink-0 ml-4">
+                      <button
+                        onClick={() => cancelJob(job.id)}
+                        className="bg-red-600 hover:bg-red-700 text-white px-3 py-1 rounded-md text-sm font-medium"
+                      >
+                        Cancel
+                      </button>
+                    </div>
+                  </div>
+                </div>
+              ))}
+          </div>
+        </div>
+      )}
+
+      {/* Recent Jobs */}
+      <div className="bg-white rounded-lg shadow">
+        <div className="px-6 py-4 border-b border-gray-200">
+          <h2 className="text-lg font-bold text-gray-900">Recent Jobs</h2>
+        </div>
+        <div className="divide-y divide-gray-200">
+          {bulkJobs.length === 0 ? (
+            <div className="px-6 py-8 text-center text-gray-500">
+              No bulk processing jobs found
+            </div>
+          ) : (
+            bulkJobs.map((job) => (
+              <div key={job.id} className="px-6 py-4">
+                <div className="flex items-center justify-between">
+                  <div className="flex-1">
+                    <div className="flex items-center space-x-3">
+                      <h3 className="text-lg font-medium text-gray-900">{job.job_type}</h3>
+                      <span className={`inline-flex px-2 py-1 text-xs font-semibold rounded-full ${
+                        job.status === 'completed' ? 'bg-green-100 text-green-800' :
+                        job.status === 'running' ? 'bg-blue-100 text-blue-800' :
+                        job.status === 'failed' ? 'bg-red-100 text-red-800' :
+                        job.status === 'cancelled' ? 'bg-orange-100 text-orange-800' :
+                        'bg-gray-100 text-gray-800'
+                      }`}>
+                        {job.status}
+                      </span>
+                    </div>
+                    <div className="mt-2 flex items-center space-x-6 text-sm text-gray-500">
+                      <span>Started: {formatDate(job.started_at)}</span>
+                      {job.completed_at && (
+                        <span>Completed: {formatDate(job.completed_at)}</span>
+                      )}
+                      {job.year && (
+                        <span>Year: {job.year}</span>
+                      )}
+                    </div>
+                    {job.total_items > 0 && (
+                      <div className="mt-2">
+                        <div className="flex items-center space-x-4 text-sm text-gray-600">
+                          <span>Progress: {job.processed_items}/{job.total_items}</span>
+                          {job.failed_items > 0 && (
+                            <span className="text-red-600">Failed: {job.failed_items}</span>
+                          )}
+                        </div>
+                        <div className="mt-1 w-full bg-gray-200 rounded-full h-2">
+                          <div 
+                            className="bg-blue-600 h-2 rounded-full" 
+                            style={{ width: `${(job.processed_items / job.total_items) * 100}%` }}
+                          ></div>
+                        </div>
+                      </div>
+                    )}
+                    {job.error_message && (
+                      <div className="mt-2 p-2 bg-red-50 border border-red-200 rounded text-sm text-red-700">
+                        {job.error_message}
+                      </div>
+                    )}
+                  </div>
+                  <div className="flex-shrink-0 ml-4">
+                    {(job.status === 'running' || job.status === 'pending') && (
+                      <button
+                        onClick={() => cancelJob(job.id)}
+                        className="bg-red-600 hover:bg-red-700 text-white px-3 py-1 rounded-md text-sm font-medium"
+                      >
+                        Cancel
+                      </button>
+                    )}
+                  </div>
+                </div>
+              </div>
+            ))
+          )}
+        </div>
+      </div>
+    </div>
+  );
+
   if (loading) {
     return (
       <div className="min-h-screen bg-gray-100 flex items-center justify-center">
@@ -573,6 +899,16 @@ function App() {
                 >
                   SIGMA Rules
                 </button>
+                <button
+                  onClick={() => setActiveTab('bulk-jobs')}
+                  className={`inline-flex items-center px-1 pt-1 border-b-2 text-sm font-medium ${
+                    activeTab === 'bulk-jobs'
+                      ? 'border-blue-500 text-gray-900'
+                      : 'border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300'
+                  }`}
+                >
+                  Bulk Jobs
+                </button>
               </div>
             </div>
           </div>
@@ -584,6 +920,7 @@ function App() {
           {activeTab === 'dashboard' && <Dashboard />}
           {activeTab === 'cves' && <CVEList />}
           {activeTab === 'rules' && <SigmaRulesList />}
+          {activeTab === 'bulk-jobs' && <BulkJobsList />}
         </div>
       </main>
 
diff --git a/init.sql b/init.sql
index 2184f47..8e9e7d5 100644
--- a/init.sql
+++ b/init.sql
@@ -13,6 +13,13 @@ CREATE TABLE cves (
     modified_date TIMESTAMP,
     affected_products TEXT[],
     reference_urls TEXT[],
+    -- Bulk processing fields
+    data_source VARCHAR(20) DEFAULT 'nvd_api',
+    nvd_json_version VARCHAR(10) DEFAULT '2.0',
+    bulk_processed BOOLEAN DEFAULT FALSE,
+    -- nomi-sec PoC fields
+    poc_count INTEGER DEFAULT 0,
+    poc_data JSON,
     created_at TIMESTAMP DEFAULT NOW(),
     updated_at TIMESTAMP DEFAULT NOW()
 );
@@ -30,6 +37,10 @@ CREATE TABLE sigma_rules (
     exploit_based BOOLEAN DEFAULT FALSE,
     github_repos TEXT[],
     exploit_indicators TEXT,
+    -- Enhanced fields for new data sources
+    poc_source VARCHAR(20) DEFAULT 'github_search',
+    poc_quality_score INTEGER DEFAULT 0,
+    nomi_sec_data JSON,
     created_at TIMESTAMP DEFAULT NOW(),
     updated_at TIMESTAMP DEFAULT NOW()
 );
@@ -44,6 +55,23 @@ CREATE TABLE rule_templates (
     created_at TIMESTAMP DEFAULT NOW()
 );
 
+-- Bulk processing jobs table
+CREATE TABLE bulk_processing_jobs (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    job_type VARCHAR(50) NOT NULL,
+    status VARCHAR(20) DEFAULT 'pending',
+    year INTEGER,
+    total_items INTEGER DEFAULT 0,
+    processed_items INTEGER DEFAULT 0,
+    failed_items INTEGER DEFAULT 0,
+    error_message TEXT,
+    job_metadata JSON,
+    started_at TIMESTAMP,
+    completed_at TIMESTAMP,
+    cancelled_at TIMESTAMP,
+    created_at TIMESTAMP DEFAULT NOW()
+);
+
 -- Insert some basic rule templates
 INSERT INTO rule_templates (template_name, template_content, applicable_product_patterns, description) VALUES 
 (
diff --git a/start.sh b/start.sh
old mode 100644
new mode 100755