Secure API Design Principles: Building Security In From the Start ສຳລັບວິສາຫະກິດລາວ

The most effective API security doesn't come from testing alone — it comes from secure design. Key principles include: authenticate every request (no unauthenticated endpoints in production), authorise at the object level (check ownership on every data access, not just at the endpoint level), minimise data exposure (return only the fields the client needs), validate all input (type, length, format, range), implement rate limiting from day one, use versioning to manage deprecation safely, log security-relevant events, and design for abuse scenarios (what happens if this API is called 10,000 times per minute?). Security testing then validates that these design principles were correctly implemented.