<![CDATA[🔴 Critical: An AI Agent Found a Critical OTP Bypass in Production. The Attack Was the Easy Part.]]>

<![CDATA[🔴 Critical: An AI Agent Found a Critical OTP Bypass in Production. The Attack Was the Easy Part.]]>During an authorized assessment, an AI pentesting agent independently identified a critical authentication bypass on a major insurer's production website. The flaw itself was straightforward: a single login request allowed the user to choose where the one-time passcode was delivered, effectively undermining the OTP verification step. Interestingly, the technical exploitation was the easy part — the real challenge lay in proving the issue on a live production system.

The vulnerability was discovered autonomously by an AI agent during an authorized engagement.
The login flow trusted user-supplied input for OTP delivery destination.
Validation and proof on the live site proved harder than the attack itself.

If your organization relies on OTP-based authentication, it is worth reviewing how delivery destinations are selected and whether user input can influence that choice. Have you audited your login flows for similar trust issues?

Source: The Hacker News
Does your organization's authentication flow allow users to control where OTPs are sent?

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