Securing Java APIs

[ghost]

Question:
What are best practices to secure Java REST APIs against attacks?

[shivrajcodez]

Auth & AuthZ → OAuth2 / JWT (roles, scopes)
Input validation → prevent injection (SQL/XSS)
HTTPS everywhere → TLS only
Rate limiting → stop abuse / DDoS
Use framework security → Spring Security
Sanitize & encode output
CORS config → restrict origins
Secrets management → no hardcoded keys
Logging & monitoring → detect attacks
Regular updates → patch vulnerabilities