Security should be built into your application from the start, not added as an afterthought. This module covers the essential security practices for Next.js applications.

Security vulnerabilities can lead to data breaches, account takeovers, and legal liability. Most common vulnerabilities are preventable with straightforward practices.

1. Protecting Environment Variables — Keeping secrets safe
2. API Security — Securing API routes and endpoints
3. Authentication Best Practices — Secure login and session management
4. Authorization Best Practices — Proper access control
5. Common Security Mistakes — What to avoid

• Protect sensitive data with environment variables
• Secure API routes against common attacks
• Follow authentication and authorization best practices
• Avoid common security mistakes

• Authentication Phase
• Code Organization Module
• Maintainability Module