SAST (Static Application Security Testing) and DAST (Dynamic Application Security Testing) are two important techniques used to identify and mitigate security vulnerabilities in web applications. These testing methods are used to ensure that web applications are secure and protect sensitive data from potential threats.

SAST is a method of testing that examines the source code of a web application for security vulnerabilities. This method is performed during the development phase of a web application, and it is used to identify and fix security issues before the application is deployed. SAST is an automated process that uses specialized tools to scan the source code and identify potential vulnerabilities. These tools can detect common issues such as SQL injection, cross-site scripting, and other vulnerabilities that could be exploited by attackers.

DAST, on the other hand, is a method of testing that examines the web application while it is running. This method is performed after the application is deployed and is used to identify vulnerabilities that may not have been detected during the development phase. DAST is an automated process that uses specialized tools to scan the web application and identify potential vulnerabilities. These tools can detect issues such as input validation, session management, and other vulnerabilities that could be exploited by attackers.

Together, SAST and DAST provide a comprehensive approach to identifying and mitigating security vulnerabilities in web applications. By using both techniques, organizations can ensure that their web applications are secure and protect sensitive data from potential threats.

In conclusion, SAST and DAST are both important techniques for identifying and mitigating security vulnerabilities in web applications. SAST is used during the development phase to identify and fix security issues before deployment, while DAST is used after deployment to identify vulnerabilities that may not have been detected during development. Together, these methods provide a comprehensive approach to ensuring the security of web applications and protecting sensitive data from potential threats.