Which type of test is typically more accurate and delivers more results: SAST or DAST?

Static Application Security Testing (SAST) is typically more accurate and delivers more results because it analyzes the source code of an application early in the development process. By examining the code for potential vulnerabilities without executing the program, SAST can identify issues such as coding errors, insecure coding practices, and potential security flaws before the application runs. This early detection allows developers to address vulnerabilities in a timely manner, significantly reducing the risk of security issues in production.

SAST tools provide comprehensive results and insights into the codebase, making it easier to understand the security implications of specific coding choices. This proactive approach to security helps organizations mitigate risks effectively and is crucial in establishing a solid security foundation during the software development lifecycle.

On the other hand, Dynamic Application Security Testing (DAST) evaluates applications in their running state, which limits its ability to analyze the underlying code and can miss certain vulnerabilities that are only detectable through static analysis. While DAST is valuable for identifying security issues that may arise when an application is executed, its reactive nature can mean that some vulnerabilities are discovered later in the development process, making them more challenging and costly to fix.