Anthropic Says It Blocked State-Linked Scientists From Using Claude For Bioweapons Research
Anthropic, the AI company behind the Claude family of models, has disclosed that it disrupted several attempts by scientists to use its systems for research that could have aided the development of biological weapons. The disclosure came in a new threat-intelligence report published titled 'Detecting and Countering Misuse of AI'. What did Anthropic find? According to the report, the company…
Anthropic, the creator of the Claude AI models, has revealed it intervened when scientists attempted to use its technology for potentially harmful research. In a new report titled "Detecting and Countering Misuse of AI," the company disclosed five cases from December 2025 to August 2026 involving state-linked scientists. These scientists aimed to use Claude for research on biological weapons, cyberattacks, influence operations, and conventional weapons development.
One case involved a scientist seeking to engineer mutations in the chikungunya virus, a mosquito-borne disease, to make it more harmful through repeated infections of live animals. The researcher's institution was a military institute, despite the grant application being written by civilian scientists. Anthropic banned the accounts involved in these cases, citing the difficulty in distinguishing between scientific benefit and potential harm, as the same biological knowledge can be used for both vaccine development and weapon creation.
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