We take security very seriously. If you discover a security vulnerability in Katya AI REChain Mesh, please report it responsibly.

Do NOT open a public issue on GitHub. Instead, please:

1. Email: [email protected]
2. Subject: "Security Vulnerability in Katya AI REChain Mesh"
3. Include:
   • Description of the vulnerability
   • Steps to reproduce
   • Potential impact
   • Your contact information (optional)

• Critical vulnerabilities: Response within 24 hours
• High severity: Response within 48 hours
• Medium/Low severity: Response within 1 week

• AES-GCM 256-bit encryption for all data in transit
• X25519 ECDH key exchange for secure communication
• Perfect Forward Secrecy for session keys
• Zero-knowledge architecture where possible

• JWT tokens with short expiration times
• Multi-factor authentication support
• Role-based access control (RBAC)
• API key management with rotation

• HTTPS only for all communications
• WebSocket encryption for real-time features
• Rate limiting on all API endpoints
• DDoS protection via cloud services

• Encrypted storage for sensitive data
• Secure key management using hardware security modules
• Data anonymization where appropriate
• GDPR compliance for user data

// Use secure random for sensitive data
import 'dart:math';
final secureRandom = Random.secure();

// Validate all inputs
String sanitizeInput(String input) {
  return input.replaceAll(RegExp(r'[<>"/\\&\'()]'), '');
}

// Use secure storage for tokens
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
final storage = FlutterSecureStorage();

// Validate API responses
class ApiResponse {
  final bool success;
  final Map<String, dynamic> data;

  ApiResponse.fromJson(Map<String, dynamic> json)
      : success = json['success'] as bool,
        data = Map<String, dynamic>.from(json['data'] as Map);
}

• Keep your device updated
• Use strong, unique passwords
• Enable biometric authentication
• Regularly review app permissions

• Use trusted Wi-Fi networks
• Avoid public Wi-Fi for sensitive operations
• Enable VPN when available
• Monitor device connections

• Be cautious with shared information
• Review privacy settings regularly
• Use app lock features
• Backup important data securely

1. Discovery: Researcher discovers vulnerability
2. Report: Vulnerability reported to security team
3. Acknowledgment: Security team confirms receipt
4. Investigation: Vulnerability is investigated and verified
5. Fix: Security team develops and tests fix
6. Disclosure: Vulnerability is publicly disclosed after fix
7. Credit: Researcher is credited (if desired)

• Day 0: Vulnerability reported
• Day 1-7: Initial investigation and triage
• Day 8-30: Fix development and testing
• Day 31-60: Deployment of fix
• Day 61+: Public disclosure (if applicable)

We follow semantic versioning with security implications:

• Major version (2.0.0): Breaking changes, security improvements
• Minor version (1.1.0): New features, security patches
• Patch version (1.0.1): Bug fixes, security fixes

1. Critical security updates: Released immediately
2. High severity: Released within 1 week
3. Medium severity: Released with next minor version
4. Low severity: Released with next patch version

• In-app notifications for critical updates
• Email notifications to registered users
• Social media announcements for major updates
• Blog posts for detailed security advisories

• OWASP Top 10 protection
• GDPR compliance for EU users
• CCPA compliance for California users
• ISO 27001 security management
• SOC 2 Type II compliance

• Data minimization principle
• Purpose limitation for data collection
• Consent management for data processing
• Right to erasure implementation
• Data portability support

# Security scanning
flutter pub run security_scan

# Dependency vulnerabilities
flutter pub audit

# Code analysis
flutter analyze --security

• Regular third-party penetration testing
• Bug bounty program participation
• Internal security reviews

• Security-focused code reviews
• Threat modeling sessions
• Security design reviews

1. Detection: Monitoring systems alert security team
2. Assessment: Severity and impact assessment
3. Containment: Isolate affected systems
4. Recovery: Restore normal operations
5. Lessons: Post-incident analysis and improvements

Security Team:

• Email: [email protected]
• Emergency: +1 (555) 123-4567
• PGP Key: Available on key servers

Legal Team:

• Email: [email protected]
• Address: 123 Security Blvd, Privacy City, PC 12345

• OWASP Flutter Security
• Dart Security Guidelines
• Flutter Security Best Practices

• OWASP ZAP
• Flutter Security Audit
• Dependency Scanner

• Flutter Security Community
• OWASP Mobile
• Dart Security Discussions

• ✅ Fixed authentication bypass vulnerability
• ✅ Updated encryption libraries
• ✅ Improved input validation
• ✅ Enhanced logging for security events

• ✅ Comprehensive security audit completed
• ✅ End-to-end encryption implemented
• ✅ Security headers configured
• ✅ Rate limiting implemented

We would like to thank the following individuals and organizations for their contributions to our security:

• Security Researchers: For responsible vulnerability disclosures
• Open Source Community: For security tools and libraries
• Flutter Team: For security guidance and best practices
• OWASP: For security standards and guidelines

Security is a shared responsibility. Help us keep Katya AI REChain Mesh secure!

Report Security Issue | Security Blog | Trust Center