wiz.io/blog· Nov 27, 2025· by Sapir Federovsky

3 OAuth TTPs Seen This Month — and How to Detect Them with Entra ID Logs

Open Original Article ↗
How OAuth tokens, JWT fields and Entra sign-in logs reveal attacker behavior, and how to turn those signals into reliable detections.
🎯 Vulnerability: OAuth 2.0 / JWT Authentication Bypass
💡 Defense Fix: Strictly verify JWT signatures on the backend, enforce state parameter validation, and reject 'alg: none'.