Anthropic publishes 161 pages on the misuse of Claude, from missiles to romance scams
The threat intelligence report Anthropic released on Thursday 10 September details, across 161 pages, attempts to misuse its Claude model and how the company says it blocked them. The catalogue goes far: research that could help make biological weapons, help with targeting missiles in Yemen, fake profiles run at scale on dating apps, fraud campaigns.
Anthropic says it has strengthened the guardrails on its latest models to limit queries touching on sensitive biology. The document also describes "distillation" campaigns, in which Chinese competitors (Alibaba, Moonshot AI, DeepSeek) query Claude en masse to copy its behaviour and train their own models more cheaply, a practice said to have intensified in recent months.
The company acknowledges a limit: it stops what it sees pass through its servers, not what is already running beyond its reach.

