NSA chief reportedly says Anthropic's Mythos AI breached classified systems in hours during red-team exercise
By
Colin Henderson
Summary
The NSA chief reportedly told Senator Mark Warner that Anthropic's AI model 'Mythos' successfully breached nearly all NSA classified systems within hours during a red-team exercise on June 11. This event has recast the subsequent export-control shutdown of Fable 5/Mythos 5 as being about autonomous offensive cyber capabilities, marking a significant moment where frontier-AI cyber-offense became a practical reality for state actors.
Source
Hacker NewsNSA chief reportedly says Anthropic's Mythos AI breached classified systems in hours during red-team exercisebankwatch.caKey quotes
· 3 pulledNSA chief says Mythos breached ‘almost all’ classified systems in hours
This is the moment the frontier-AI cyber-offence question stopped being theoretical for a state actor.
The disclosure is circulating widely this weekend and recasts the 12 June export-control shutdown of Fable 5 / Mythos 5 as being about autonomous offensive c
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