This post documents my negative experience with the servers.guru vulnerability disclosure / bug bounty process. I am writing this publicly because private communication led nowhere, and I believe security researchers deserve honesty and transparency. The Short Version I submitted two legitimate security vulnerabilities Both had real-world impact Both were clearly explained with reproduction steps No payment was made No convincing technical justification was given You can decide what that says about the program. Vulnerability #1: OTP Reuse (Authentication Broken) Category: Authentication / Logic Flaw Severity: High servers.guru implemented OTP in a way that defeats the entire purpose of OTP . What Was Wrong The same OTP could be reused multiple times instead of being invalidated after first use. This is not a “best practice” issue. This is OTP 101 . Why This Matters OTPs are meant to be one-time Reuse allows replay attacks Any intercepte...