Add comprehensive STRIDE threat model and incident response plan

Co-authored-by: animator <615622+animator@users.noreply.github.com>

doc/README.md

@@ -2,4 +2,5 @@
 
 - [User Guide](https://github.com/foss42/apidash/tree/main/doc/user_guide)
 - [Developer Guide](https://github.com/foss42/apidash/tree/main/doc/dev_guide)
+- [Security Documentation](https://github.com/foss42/apidash/tree/main/doc/security)
 - [GSoC Project Docs](https://github.com/foss42/apidash/tree/main/doc/gsoc)

doc/security/README.md

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+# API Dash Security Documentation
+
+This folder contains comprehensive security documentation for the API Dash project.
+
+## 📚 Documents
+
+### 1. [STRIDE Threat Model](STRIDE_THREAT_MODEL.md)
+A comprehensive threat analysis of the API Dash application using the STRIDE (Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege) framework.
+
+**Contents:**
+- System architecture and data flow analysis
+- Detailed threat identification across all STRIDE categories
+- Risk assessment and prioritization
+- Recommended security controls and mitigations
+- Security testing recommendations
+
+**Key Highlights:**
+- 23 identified threats across all STRIDE categories
+- Risk-scored threat matrix for prioritization
+- Immediate, short-term, and long-term action plans
+- Focus on critical issues: credential storage, dependency management, data integrity
+
+### 2. [Incident Response Plan (IRP)](INCIDENT_RESPONSE_PLAN.md)
+A structured incident response plan aligned with 2025 industry standards and best practices for handling security incidents in the API Dash open source project.
+
+**Contents:**
+- Incident response team structure and roles
+- Incident classification and severity levels
+- Complete incident response lifecycle (Detection → Recovery)
+- Specific response procedures for different incident types
+- Communication plans and templates
+- Post-incident review processes
+- Training and awareness programs
+
+**Key Features:**
+- Aligned with NIST, SANS, and ISO incident management standards
+- Clear SLAs for response times based on severity
+- Coordinated disclosure procedures
+- Compliance with GDPR, CCPA, and other regulations
+- Ready-to-use templates and checklists
+
+## 🎯 Purpose
+
+These documents serve to:
+
+1. **Identify Security Risks**: Systematically analyze potential threats to API Dash
+2. **Guide Security Improvements**: Provide actionable recommendations for enhancing security
+3. **Prepare for Incidents**: Establish clear procedures for responding to security events
+4. **Build Trust**: Demonstrate commitment to security for users and contributors
+5. **Enable Collaboration**: Provide framework for security community engagement
+
+## 🚀 Quick Start
+
+### For Maintainers
+1. Review the [STRIDE Threat Model](STRIDE_THREAT_MODEL.md) to understand security risks
+2. Familiarize yourself with the [Incident Response Plan](INCIDENT_RESPONSE_PLAN.md)
+3. Ensure you're listed in the incident response team contacts
+4. Complete security training as outlined in the IRP
+5. Set up security tools and monitoring as recommended
+
+### For Security Researchers
+1. Review our [Security Policy](../../SECURITY.md) for vulnerability reporting
+2. Understand the threat landscape via the STRIDE model
+3. Follow coordinated disclosure guidelines in the IRP
+4. Report security issues through GitHub Security Advisories
+
+### For Users
+1. Follow security best practices in user documentation
+2. Keep API Dash updated to the latest version
+3. Report security concerns through proper channels
+4. Review security advisories when published
+
+## 📋 Implementation Status
+
+### Immediate Priorities (From Threat Model)
+- [ ] Implement secure credential storage using OS keychains
+- [ ] Enable GitHub Dependabot for dependency scanning
+- [ ] Add data integrity verification for local storage
+- [ ] Implement secure export functionality with warnings
+
+### In Progress
+- [x] STRIDE threat model completed
+- [x] Incident response plan established
+- [ ] Security testing framework setup
+- [ ] Automated security scanning in CI/CD
+
+### Planned
+- [ ] Regular security audits
+- [ ] Penetration testing
+- [ ] Security awareness training
+- [ ] Tabletop exercises for incident response
+
+## 🔄 Maintenance
+
+### Review Schedule
+- **Threat Model**: Quarterly review, update after major features
+- **Incident Response Plan**: Annual review, update after incidents
+- **Both**: Update based on security incidents and lessons learned
+
+### Version History
+| Document | Version | Date | Status |
+|----------|---------|------|--------|
+| STRIDE Threat Model | 1.0 | December 2025 | Current |
+| Incident Response Plan | 1.0 | December 2025 | Current |
+
+**Next Review Date**: March 2026
+
+## 📞 Contact
+
+### Security Issues
+- **Preferred**: [GitHub Security Advisories](https://github.com/foss42/apidash/security/advisories/new)
+- **Email**: security@apidash.dev
+- **Response Time**: See IRP for SLAs based on severity
+
+### Questions About Security Docs
+- Create a discussion in [GitHub Discussions](https://github.com/foss42/apidash/discussions)
+- Tag with `security` label
+- Contact maintainers via Discord #security channel
+
+## 🤝 Contributing to Security
+
+We welcome contributions to improve API Dash security:
+
+1. **Report Vulnerabilities**: Follow responsible disclosure in [SECURITY.md](../../SECURITY.md)
+2. **Suggest Improvements**: Open discussions for security enhancements
+3. **Security Testing**: Help with testing and validation
+4. **Documentation**: Improve security documentation and guides
+5. **Code Review**: Participate in security-focused code reviews
+
+### Security Contributions Guidelines
+- All security-related PRs require review from security team members
+- Security fixes should include tests demonstrating the fix
+- Update threat model if addressing identified threats
+- Follow secure coding guidelines in developer docs
+
+## 📖 Related Documentation
+
+- [Main Security Policy](../../SECURITY.md) - How to report security vulnerabilities
+- [Contributing Guidelines](../../CONTRIBUTING.md) - General contribution guidelines
+- [Developer Guide](../dev_guide/README.md) - Development setup and practices
+- [Code of Conduct](../../CODE_OF_CONDUCT.md) - Community standards
+
+## 📚 External Resources
+
+### Security Frameworks
+- [STRIDE Threat Modeling (Microsoft)](https://learn.microsoft.com/en-us/previous-versions/commerce-server/ee823878(v=cs.20))
+- [NIST Incident Response Guide (SP 800-61)](https://csrc.nist.gov/publications/detail/sp/800-61/rev-2/final)
+- [OWASP Mobile Security](https://owasp.org/www-project-mobile-security-testing-guide/)
+
+### Tools and Standards
+- [CVSS Calculator](https://www.first.org/cvss/calculator/3.1)
+- [CWE - Common Weakness Enumeration](https://cwe.mitre.org/)
+- [CVE - Common Vulnerabilities and Exposures](https://cve.mitre.org/)
+
+### Flutter/Dart Security
+- [Flutter Security Best Practices](https://docs.flutter.dev/security)
+- [Dart Security Advisories](https://github.com/dart-lang/sdk/security/advisories)
+
+## 🏆 Acknowledgments
+
+This security documentation was created based on:
+- Industry-standard threat modeling methodologies (STRIDE, DREAD, PASTA)
+- NIST Cybersecurity Framework and Incident Response guidelines
+- ISO/IEC 27001/27035 standards
+- OWASP best practices
+- Real-world incident response experiences from the open source community
+- Guidance from security researchers and practitioners
+
+Special thanks to the security community and all researchers who help keep API Dash secure through responsible disclosure.
+
+---
+
+**Document Classification**: Public  
+**Last Updated**: December 2025  
+**Maintained By**: API Dash Security Team
+
+For the latest version of this documentation, visit: https://github.com/foss42/apidash/tree/main/doc/security