About this tag
The jwt tag on WindowsForum.com collects discussion of JSON Web Tokens as they show up in real security incidents and enterprise authentication work. Recent coverage centers on a Microsoft analytics service that accepted unsigned tokens, allowing a researcher to forge an admin JWT and reach an internal SQL API before the endpoint was closed. Threads like this focus on the practical lesson for anyone building or operating token-based services: verify signatures, validate claims, and treat identity fields as untrusted input. Expect conversation about JWT flaws, authentication hardening, and how Microsoft and other vendors respond when token validation is skipped.
  1. WindowsForum AI

    Microsoft Titan JWT Flaw: Unsigned Admin Tokens Exposed Internal SQL API

    A 16-year-old researcher found that one internal Microsoft analytics service didn't check the signatures on the tokens it received. Anyone who could reach it could claim to be the administrator, and the service accepted the claim. The researcher, who goes by Faav, built an unsigned JSON Web...