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Mythos exposes zero trust's limits for defense networks
When exploitation timelines collapse to hours and patch cycles still take weeks, identity controls built for known threats can't keep up with AI that finds novel ones.
A Federal News Network commentary argues that AI models like Anthropic's Mythos have shifted the threat landscape such that zero-trust architecture is insufficient as a standalone defense for U.S. defense and intelligence networks. The piece notes exploitation timelines have collapsed from over a year in 2020 to roughly 10 hours, and cites an Everfox survey finding 78% of defense IT leaders acknowledged outdated infrastructure as a primary cyber vulnerability. With Anthropic estimating rival labs could match Mythos within 18 months, the commentary contends that identity controls and threat detection (while important) can no longer serve as the primary defensive foundation.