This document outlines the security measures implemented in Shelldo and best practices for deployment.

• .env - Contains actual secrets and keys
• .env.local
• .env.production.local
• Any files with real OAuth secrets

• .env.example - Template with placeholder values

• Client ID: Safe to be public (already in frontend)
• Client Secret: Must be kept secure, never commit to Git
• Redirect URIs are restricted in Google Console

• Client ID: Safe to be public
• Client Secret: Must be kept secure, never commit to Git
• Callback URLs are restricted in GitHub settings

• Uses Prisma ORM to prevent SQL injection
• Prepared statements for all queries
• Foreign key constraints enforced
• Audit logging for all user actions

• JWT tokens with secure secrets
• Session-based authentication with NextAuth.js
• Rate limiting: 100 requests/hour per user
• Secure cookie settings in production

• Rate limiting on all endpoints
• Input validation with Zod schemas
• CORS protection
• Security headers (HSTS, CSP, etc.)

• Change all default secrets in .env
• Use complex, randomly generated secrets
• Enable HTTPS in production
• Set NODE_ENV=production
• Configure proper CORS origins
• Set up database connection pooling
• Enable Redis for production caching
• Configure monitoring and logging
• Set up error tracking (Sentry)
• Enable rate limiting
• Configure security headers

# Generate secure secrets
openssl rand -base64 32  # For JWT_SECRET
openssl rand -base64 32  # For NEXTAUTH_SECRET

• X-Frame-Options: DENY
• X-Content-Type-Options: nosniff
• Referrer-Policy: strict-origin-when-cross-origin
• Permissions-Policy: camera=(), microphone=(), geolocation=()

If you discover a security vulnerability, please report it to:

• Email: security@shelldo.com
• GitHub: Create a private security advisory

• Create public GitHub issues for security vulnerabilities
• Disclose vulnerabilities publicly before they are fixed

1. Input Validation: All user inputs validated with Zod
2. SQL Injection Protection: Prisma ORM with prepared statements
3. XSS Protection: React's built-in XSS protection + CSP headers
4. CSRF Protection: NextAuth.js built-in CSRF protection
5. Rate Limiting: Redis-based rate limiting
6. Audit Logging: All user actions logged
7. Secure Sessions: JWT with secure httpOnly cookies
8. OAuth Security: Proper OAuth 2.0 implementation

• Failed login attempts tracking
• Rate limit breach detection
• Unusual activity patterns
• Database query monitoring
• Error rate monitoring

• GDPR compliant user data handling
• Right to deletion implemented
• Data export functionality
• Privacy policy compliance

• OWASP Top 10 protections implemented
• Regular security dependency updates
• Automated vulnerability scanning in CI/CD

1. Immediate: Rotate all secrets and API keys
2. Assess: Determine scope of potential data exposure
3. Notify: Inform affected users if personal data involved
4. Document: Log incident for future prevention
5. Patch: Fix vulnerability and deploy immediately

• Security Team: security@shelldo.com
• On-call: Available 24/7 for critical issues

Security is everyone's responsibility. Report issues promptly and follow secure coding practices.