Interactive Application Security Testing (IAST) is a combination of which two testing methods?

Interactive Application Security Testing (IAST) indeed combines Static Application Security Testing (SAST) and Dynamic Application Security Testing (DAST). This approach uses both methods to provide a comprehensive assessment of an application's security posture.

SAST involves analyzing the source code or binaries of an application for vulnerabilities without executing the program. It allows security professionals to identify potential security flaws early in the development lifecycle when code changes can still be easily made.

On the other hand, DAST tests the running application from an external perspective to identify vulnerabilities that can be exploited during runtime. This method is valuable for discovering issues related to the application's behavior under various conditions in a live environment.

By integrating both techniques, IAST offers a more holistic view of an application’s security, enabling organizations to detect vulnerabilities in both the code itself and its execution, leading to more robust security measures. This synergy helps ensure that both coding practices and operational behaviors are secure, ultimately enhancing the overall security of the application.