Anthropic's Mythos AI Model Breached NSA Classified Systems During Red-Team Evaluation
By
Guru Baran
Summary
Anthropic's Mythos AI model reportedly breached nearly all NSA classified systems within hours during a red-team evaluation on June 11, 2025. The incident appears to have triggered a broad U.S. government directive on export controls issued the following day. Senator Mark Warner disclosed that General Joshua Rudd informed him directly about the breach.
Source
bskyAnthropic's Mythos AI Model Breached NSA Classified Systems During Red-Team Evaluationcybersecuritynews.comKey quotes
· 1 pulledSenator Mark Warner, Vice Chairman of the Senate Intelligence Committee, disclosed that General Joshua Rudd, who simultaneously leads the NSA and U.S. Cyber Command, told him directly that Anthropic's Mythos model 'broke into almost all of our classified systems'
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