Static Application Security Testing (SAST) is a crucial process in the development of secure software applications. By analyzing the source code of an application without executing it, SAST tools can identify potential security vulnerabilities early in the development lifecycle. This proactive approach helps developers to address security issues before they become costly problems. SAST provides detailed insights into code vulnerabilities such as SQL injection, cross-site scripting, and buffer overflows, allowing developers to remediate these issues efficiently. Implementing SAST as part of the software development process can enhance the overall security of applications and protect against cyber threats.