The Back Door Attackers Know About — and Most Security Teams Still Haven’t Closed
May 05, 2026
SaaS Security / Enterprise Security
Every AI tool, workflow automation, and productivity app your employees connected to Google or Microsoft this year left something behind: a persistent OAuth token with no expiration date, no automatic cleanup, and in most organizations, no one watching it. Your perimeter controls don't see it. Your MFA doesn't stop it. And when an attacker gets hold of one, they don't need a password. OAuth grants don't expire when employees leave. They don't reset when passwords change. And in most organizations, nobody is watching them. The model made sense when a handful of IT-approved apps needed calendar access. It doesn't hold up when every employee is independently wiring AI tools, workflow automations, and productivity apps directly into their Google or Microsoft environment — each one receiving a persistent, scoped token with no automatic expiration and no centralized visibility. That's not a misconfiguration. It's how OAuth is designed to work. The gap is t...