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FILED BY ADEQUATE · DARPA-HRO-11-C-0031
SecurityWeek · WEDNESDAY, JUNE 24, 2026
Anthropic’s Mythos Model Found Vulnerabilities in Classified US Government Systems, Official Says
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ORIGINAL FILING
SecurityWeek
FURTHER DEVELOPMENTS — FLAGGED BY ADEQUATE
Anthropic's Mythos Breached 'Almost All' NSA Classified Systems in Hours During Red-Team Test
Tom's Hardware
Anthropic Named Eight Firms Selling Its Shares Illegally, Then Quietly Removed Four of the Names
TNW Neural
Anthropic Told Fable 5 Was Jailbroken by Chinese Group, Declined to Patch Before Export Controls
Tom's Hardware
Anthropic’s Fable 5 Model Jailbroken Within Days
Schneier on Security
U.S. Citizen Files Federal Lawsuit Claiming Denial of Access to Anthropic's Fable 5 Model
Gizmodo
Trump Executive Order Grants Government 30-Day Pre-Release Access to Frontier AI Models
Tom's Hardware
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