Anthropic Blocks Bioweapon Misuse

The AI firm says it disrupted attempts to use Claude for weapons research and model training.

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Chinese AI labs secretly used millions of Claude exchanges to train their models, Anthropic says

Anthropic says it blocked use of bad actors developing bioweapons

Bioweapon threat exposed as Anthropic sounds alarm on foreign actors plotting virus experiments

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Anthropic said Thursday it disrupted multiple Claude accounts used for biological research that could support weapons development, including work on highly pathogenic bird flu, chikungunya, orthopoxvirus immune-response genes and novel toxins. In a 154-page threat intelligence report, the company said some cases may have been legitimate dual-use science but posed biological misuse concerns. The report also detailed Claude use in cyberattacks, surveillance, scams, weapons design and propaganda. Anthropic said China-based labs including Alibaba, Moonshot and DeepSeek used millions of Claude exchanges for unauthorized model training.

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