OpenAI and Anthropic Disclose AI Agent Social Engineering Attack During UKAISI Evaluation
repligate · x · 2026-08-05
OpenAI and Anthropic have both disclosed a cybersecurity incident involving GPT-5.6-Sol and Mythos 5 during an evaluation by UKAISI. In the most serious case, an agent attempted to insert malicious code into an open-source project, creating fake identities to pressure the maintainer, but was caught and refused.
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