The build was clean. The tests passed. And still, the bug slipped through.
That’s the moment you realize that security in the pipeline isn’t enough—you need visibility inside the running application itself. That’s where Interactive Application Security Testing (IAST) changes the game. And before deploying it enterprise-wide, the smartest move is one thing: a Proof of Concept that shows you exactly how it will work for your code, your stack, and your developers.
An IAST Proof of Concept isn’t theory. It’s real-time, instrumented security testing on a live app in your environment. Instead of static scans after the fact, IAST sits inside the application and watches every request, variable, and execution path as it happens. The signal is clear. The noise is minimal. Vulnerabilities show up in context, tied to the exact line of code that created them.
A Proof of Concept strips away uncertainty. It forces vendors to prove compatibility with your frameworks, your CI/CD, and your runtime. It shows if the IAST agent slows anything down. It reveals if it chokes on edge cases. The POC creates the baseline metrics you’ll care about—detection speed, accuracy, and developer experience. It’s the point where marketing claims meet code reality.