Which testing method is described as useful for finding security problems such as XSS errors and SQL injection vulnerabilities?

The testing method that is particularly effective for identifying security problems such as Cross-Site Scripting (XSS) errors and SQL injection vulnerabilities is Dynamic Application Security Testing (DAST), which is often focused on testing the application during its runtime, allowing for the identification of vulnerabilities as they would be exploited in a live environment.

Dynamic Application Security Testing simulates an attack against the application while it is running, thus uncovering security weaknesses that may not be apparent through other means. This method is adept at finding issues that involve input validation, user input processing, and session management—key areas where XSS and SQL injection vulnerabilities often reside.

Static Application Security Testing (SAST), on the other hand, analyzes the source code or binary code of the application without executing it. While it is effective for finding some types of vulnerabilities during the development phase, DAST is more suited for runtime analysis of web applications, making it more relevant for locating XSS and SQL injection vulnerabilities during actual usage scenarios.

Pentesting (or penetration testing) encompasses a broader security assessment approach, simulating real-world attacks based on the application environment and potentially identifying a wide range of security weaknesses; however, it is not a specific testing method in itself but rather a technique that can utilize D