Senate Intelligence vice chair claims NSA chief said Mythos breached classified systems; journalist skeptical
X-Risk Daily
Tuesday 23 June 2026
Transformative AI
On 11 June, Senator Mark Warner, vice chair of the US Senate Intelligence Committee, disclosed that General Joshua Rudd—who simultaneously leads the National Security Agency and US Cyber Command—told him Anthropic's Mythos model had penetrated nearly all of the NSA's classified systems during an authorized red-team exercise.
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