# Security Audit Checklist

This document provides a comprehensive security audit checklist for The Order monorepo.

## Authentication & Authorization

- [ ] All API endpoints require authentication
- [ ] JWT tokens are properly validated and signed
- [ ] DID signatures are cryptographically verified
- [ ] eIDAS certificates are validated with proper chain of trust
- [ ] Role-based access control (RBAC) is enforced
- [ ] Multi-factor authentication (MFA) is supported where required
- [ ] Session management is secure (timeouts, invalidation)
- [ ] Password policies are enforced (if applicable)
- [ ] API keys are stored securely and rotated regularly
- [ ] OAuth2/OIDC flows are implemented correctly

## Secrets Management

- [ ] No hardcoded secrets in code
- [ ] Secrets are stored in AWS Secrets Manager or Azure Key Vault
- [ ] Secrets are rotated regularly
- [ ] Secret access is logged and audited
- [ ] Secrets are encrypted at rest and in transit
- [ ] Environment variables are validated and sanitized
- [ ] Secret caching has appropriate TTL
- [ ] Secrets are never logged or exposed in error messages

## Data Protection

- [ ] Sensitive data is encrypted at rest
- [ ] Data is encrypted in transit (TLS 1.2+)
- [ ] PII is properly handled and protected
- [ ] Data retention policies are enforced
- [ ] Data deletion is secure and audited
- [ ] Database connections use SSL/TLS
- [ ] Database credentials are stored securely
- [ ] Backup encryption is enabled
- [ ] Data masking is used in non-production environments

## Input Validation & Sanitization

- [ ] All user inputs are validated
- [ ] SQL injection prevention (parameterized queries)
- [ ] NoSQL injection prevention
- [ ] XSS prevention (output encoding)
- [ ] CSRF protection is enabled
- [ ] File upload validation (type, size, content)
- [ ] Path traversal prevention
- [ ] Command injection prevention
- [ ] XML/XXE injection prevention
- [ ] LDAP injection prevention

## API Security

- [ ] Rate limiting is implemented
- [ ] API versioning is used
- [ ] CORS is properly configured
- [ ] API authentication is required
- [ ] Request size limits are enforced
- [ ] Response compression is secure
- [ ] API keys are rotated regularly
- [ ] API endpoints are documented
- [ ] API errors don't leak sensitive information
- [ ] Request/response logging doesn't expose secrets

## Cryptography

- [ ] Strong encryption algorithms are used (AES-256, RSA-2048+)
- [ ] Cryptographic keys are managed securely (KMS/HSM)
- [ ] Key rotation is implemented
- [ ] Cryptographic randomness is secure
- [ ] Hash functions are secure (SHA-256+)
- [ ] Digital signatures are properly validated
- [ ] Certificate validation is comprehensive
- [ ] TLS configuration is secure (strong ciphers, protocols)

## Infrastructure Security

- [ ] Container images are scanned for vulnerabilities
- [ ] Container images are signed (Cosign)
- [ ] SBOM is generated for all artifacts
- [ ] Infrastructure as Code is reviewed
- [ ] Network policies are enforced
- [ ] Firewall rules are properly configured
- [ ] Load balancers have DDoS protection
- [ ] WAF rules are configured
- [ ] Secrets are not exposed in infrastructure configs
- [ ] Resource limits are enforced

## Dependency Management

- [ ] Dependencies are regularly updated
- [ ] Vulnerable dependencies are identified and patched
- [ ] Dependency scanning is automated (Grype, Trivy)
- [ ] License compliance is checked
- [ ] Unused dependencies are removed
- [ ] Dependency pinning is used where appropriate
- [ ] Supply chain security is monitored

## Logging & Monitoring

- [ ] Security events are logged
- [ ] Logs are stored securely
- [ ] Log retention policies are enforced
- [ ] Sensitive data is not logged
- [ ] Log access is restricted and audited
- [ ] Security monitoring and alerting is configured
- [ ] Incident response procedures are documented
- [ ] Security metrics are tracked

## Compliance

- [ ] GDPR compliance (if applicable)
- [ ] eIDAS compliance
- [ ] ISO 27001 alignment (if applicable)
- [ ] SOC 2 compliance (if applicable)
- [ ] Regulatory requirements are met
- [ ] Privacy policies are up to date
- [ ] Data processing agreements are in place
- [ ] Compliance audits are conducted regularly

## Threat Modeling

- [ ] Threat model is documented
- [ ] Attack surfaces are identified
- [ ] Threat vectors are analyzed
- [ ] Mitigation strategies are implemented
- [ ] Threat model is reviewed regularly
- [ ] New features are threat modeled
- [ ] Third-party integrations are assessed

## Security Testing

- [ ] Penetration testing is conducted regularly
- [ ] Vulnerability scanning is automated
- [ ] Security code review is performed
- [ ] Fuzzing is used for critical components
- [ ] Security regression tests are in place
- [ ] Bug bounty program is considered
- [ ] Security testing is part of CI/CD

## Incident Response

- [ ] Incident response plan is documented
- [ ] Security contacts are identified
- [ ] Incident response team is trained
- [ ] Communication plan is in place
- [ ] Forensics capabilities are available
- [ ] Recovery procedures are documented
- [ ] Post-incident review process exists

## Security Training

- [ ] Security training is provided to developers
- [ ] Security awareness program exists
- [ ] Secure coding guidelines are followed
- [ ] Security best practices are documented
- [ ] Security updates are communicated

## Review Schedule

- **Monthly**: Dependency updates, security patches
- **Quarterly**: Security audit, threat model review
- **Annually**: Penetration testing, compliance audit
- **As needed**: Security incidents, new features, major changes

## Tools & Resources

### Automated Scanning
- **Trivy**: Container and filesystem scanning
- **Grype**: Dependency vulnerability scanning
- **Syft**: SBOM generation
- **ESLint Security Plugin**: Static code analysis
- **SonarQube**: Code quality and security

### Manual Testing
- **OWASP ZAP**: Web application security testing
- **Burp Suite**: Web security testing
- **Nmap**: Network scanning
- **Metasploit**: Penetration testing

### Resources
- [OWASP Top 10](https://owasp.org/www-project-top-ten/)
- [OWASP API Security Top 10](https://owasp.org/www-project-api-security/)
- [CWE Top 25](https://cwe.mitre.org/top25/)
- [NIST Cybersecurity Framework](https://www.nist.gov/cyberframework)

## Sign-off

- [ ] Security audit completed
- [ ] Findings documented
- [ ] Remediation plan created
- [ ] Timeline established
- [ ] Stakeholders notified

**Audit Date**: _______________
**Auditor**: _______________
**Next Review Date**: _______________