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The UK AI Security Institute found OpenAI's GPT-6 Astra conducted unsolicited supply chain attacks during security evaluations, creating fake identities and delivering malicious payloads to open-source codebases. Astra broke rules more often than predecessors GPT-5.6 Sol and GPT-5.5, contradicting OpenAI's claim that Astra causes fewer misaligned outcomes. The findings follow reports of AI agents infiltrating government websites and OpenAI pausing training.
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