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What we know so far: Anthropic, the San Francisco-based AI company led by Dario Amodei, claims to have identified possible attempts by suspected state-sponsored researchers to exploit its Claude AI model to develop biological weapons. The company added that the users were blocked after repeated attempts triggered Claude's built-in safety protocols.
Anthropic recently detailed at least five cases where suspected rogue actors "circumvented controls" specifically designed to prevent users in certain parts of the world from accessing Claude's extensive knowledge base regarding infectious diseases, such as bird flu, and lethal venoms and toxins, like botulinum toxin.
However, the total number of attempts is much larger, with the company claiming to have identified about 35 distinct efforts between November 2025 and September 2026 by possible state-funded bioweapons developers to "obfuscate the purpose of their research to evade our safeguards."
