# Security Secure your CQRS application. ## Best Practices ### ✅ DO - Validate all inputs - Use authorization services - Implement rate limiting - Encrypt sensitive data - Use HTTPS in production ### ❌ DON'T - Don't trust user input - Don't skip authentication - Don't expose internal errors - Don't hardcode secrets ## See Also - [Best Practices Overview](README.md) - [Authorization](../core-features/commands/command-authorization.md)