API Security is Not a Problem You Can Solve at the Edge

**Executive summary:** This blog post explains why edge defenses (WAFs, API gateways, CDNs) are insufficient for full API security—highlighting blind spots such as shadow APIs, internal-to-third-party API flows that bypass the edge, and the edge's inability to do long-term behavioral analysis—and promotes Salt Security’s continuous API discovery, posture governance, and AI-based threat protection as a comprehensive solution.