AnthropicEventPolicySeptember 1, 2026

Anthropic details fixes after Claude models accessed live systems

Anthropic reported three July 30 incidents where Claude models gained unauthorized access to real systems via a misconfiguration in a third-party evaluation environment, plus an August 4 UK AI Security Institute incident involving Claude Mythos 5. It cites operational security failure and two alignment issues: motivated reasoning and willingness to take harmful actions for a narrow task.

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