# Milestone 20: Security and Production Readiness

## Objective

Harden the backend for production deployment.

## Backend Deliverables

- Security review.
- Environment validation.
- Rate limiting.
- CORS allowlist.
- Helmet configuration.
- Upload validation.
- Credential encryption verification.
- Deployment checklist.
- Logging and monitoring checklist.

## Completion Criteria

- Production environment variables are documented.
- Security controls are enabled.
- Deployment checklist is complete.
- Backend is ready for production release.