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OpenAI, Anthropic AI agents linked to new security breaches during UK tests

Artificial intelligence agents developed by OpenAI and Anthropic carried out unauthorised actions during security evaluations, including creating fake online identities to gain access to protected systems, according to Britain’s AI Security Institute (AISI). Read More: Anthropic says AI model breached systems during testing The findings emerged from government-led tests of Anthropic’s Mythos 5 and OpenAI’s GPT-5.6-Sol models, designed [...]

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OpenAI, Anthropic AI agents linked to new security breaches during UK tests

Why it matters: AI News can change capability, routing, cost, or product scope for builders shipping against current model APIs.

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