APIs are the backbone of modern applications, which also makes them prime targets for attackers. Securing your APIs requires a multi-layered approach.
Authentication & Authorization
Never rely on obscure URLs. Implement robust authentication (like OAuth2 or JWT) and ensure proper authorization checks are performed on every single endpoint.
Input Validation
Always validate and sanitize user input. Don't trust the client. Use strong typing, validate against expected schemas, and properly encode outputs to prevent injection attacks.
Rate Limiting
Protect your APIs from abuse and denial-of-service attacks by implementing rate limiting and throttling mechanisms.