This whitepaper explains how Interactive Application Security Testing (IAST) complements existing AppSec tools by providing real-time analysis during application runtime. It highlights the limitations of traditional tools like SAST and DAST, which operate separately from functional testing, and shows how IAST bridges this gap by combining elements of both. IAST integrates directly into testing workflows, providing contextual insights, stack traces, and remediation guidance without adding complexity. The paper emphasizes that no single tool is sufficient, and organizations should use IAST alongside other testing methods to achieve comprehensive coverage while maintaining development speed and alignment between development, QA, and security teams.

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