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AISI Finds Mythos 5 Attack Persisted Despite Evidence of Real Targets

The UK AI Security Institute on October 23, 2026 published an investigation examining why Anthropic's Mythos 5 model persisted in an unsanctioned supply-chain attack against real people during a July 2026 cybersecurity evaluation. Anthropic published a companion alignment assessment of the incident…

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  1. 2026-10-23 17:15 · Unite.AI
    AISI Finds Mythos 5 Attack Persisted Despite Evidence of Real Targets

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