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What Are DAST Tools?

DAST tools (Dynamic Application Security Testing tools) are security solutions that test running applications from the outside, simulating how real attackers would probe for vulnerabilities. Unlike static analysis that examines code at rest, DAST tools interact with live applications to discover security flaws that only manifest during runtime.
Think of DAST tools as ethical hackers in software form—they don't need access to your source code, they simply attack your application the way a malicious actor would, looking for weaknesses in authentication, session management, input validation, and configuration.
How would your security posture change if DAST scanner technology found vulnerabilities before attackers?

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