Time-to-Revoke: The Metric CISOs Need in the AI Exploit Era
May 18, 2026
The conversation around Anthropic's Claude Mythos Preview has understandably centered on zero-days. If AI systems can identify and exploit vulnerabilities across every operating system and browser at scale, defenders have to assume that exploit timelines will keep compressing. But for CISOs, the harder question is how long exposed access credentials remain valid after defenders discover the exposure. Credentials determine how far an attacker can move, how long they can persist, and how difficult containment becomes. A vulnerability just gets them in the door. That gap between time-to-exploit and time-to-revoke is where many organizations are most exposed. GitGuardian's State of Secret Sprawl report shows 64% of valid secrets detected in 2022 were still active and exploitable four years later in an environment where exploitation now collapses to hours. Vulnerabilities get attackers in the door, but credentials decide how far they go. The Mythos-ready briefing , developed b...
