Overview
IAST is designed to provide the best of both worlds. It uses an agent placed inside the application (like an APM tool) to observe code execution, data flow, and configuration while the application is being tested (either manually or by automated DAST/functional tests).
How it Works
When a test triggers a vulnerability, the IAST agent sees exactly what happened inside the code and reports it with high accuracy, including the line of code and the full data path.
Benefits
- Very low false-positive rate.
- Identifies both code-level and runtime vulnerabilities.
- Provides real-time feedback to developers.
- Does not require a separate scanning phase; it runs during normal testing.