Application Security Testing (AST): SAST, DAST, IAST and SCA
Application security testing combines four complementary testing methods: SAST (static source code analysis), DAST (dynamic testing of running applications), IAST (internal instrumentation), and SCA (third-party library analysis). This article explains how each method works, its strengths and weaknesses, how to integrate them into CI/CD, and which tools are suitable for which use cases.
Summary: A security testing method that attacks running web applications from the outside—without access to the source code. DAST simulates real attackers and identifies vulnerabilities such as SQL injection, XSS, and misconfigured servers that remain undetected by static code analysis.
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About the Author
M.Sc. IT-Sicherheit mit über 5 Jahren Erfahrung in offensiver Sicherheitsanalyse. Leitet die Durchführung von Penetrationstests mit Spezialisierung auf Web-Applikationen, Netzwerk-Infrastruktur, Reverse Engineering und Hardware-Sicherheit. Verantwortlich für mehrere Responsible Disclosures.
