Authentication DAST is the missing test most teams skip. Static analysis can’t see it. Unit tests can’t catch it. Only a real run, against a live system, reveals how your authentication holds up when a hostile client pushes every edge.
Dynamic Application Security Testing, when applied to authentication, means testing the actual end-to-end flow: login, session management, MFA, password recovery, API token issuance. It means finding the invisible cracks—those that only show when the code, configs, cookies, and headers come together in motion.
Most development cycles focus on pre-production scans or library vulnerability checks. Hackers don’t care about your repos; they aim for deployed endpoints. That’s why Authentication DAST focuses on real environments. It simulates credential stuffing, brute force, session fixation, JWT tampering, and replay attacks—against the same URLs your customers use.
Coverage matters. Authentication isn’t just /login. It’s every route gated by identity checks. It’s forgotten password flows that can be bypassed with crafted requests. It’s session timeouts that never happen because of a misconfigured keep-alive. It’s refresh tokens lingering too long in local storage. Without dynamic testing, these failures ship to production.