Anthropic
Anthropic details how people tried to misuse Claude
Anthropic put a long threat report on the table Thursday. The company’s Threat Intelligence team says that over about eight months it found and shut down operations that tried to use Claude for harm. The report covers activity from December 2025 through August 2026 in seven areas: cyber attacks, influence campaigns, surveillance, scams and fraud, biological misuse, conventional weapons work, and illicit distillation. Claude Haiku, Sonnet, and Opus models show up in the cases. Anthropic says none of the misuse cases involved Claude Fable or Mythos-class models except one illicit distillation case. The actors range from suspected state-backed groups to money-motivated criminals, spyware vendors, state propaganda shops, and politically motivated individuals. One detailed cyber case, labeled GTG-20006, describes a Russian-speaking operator whose tradecraft the company says is consistent with Midnight Blizzard-style espionage against Ukrainian and European government and defense targets. Another cluster, tied to suspected ShinyHunters affiliates, used Claude to speed smash-and-grab data theft and extortion. Anthropic says it banned accounts, hardened safeguards, and shared intelligence with authorities and industry partners. Outside labs and governments have not been independently verified here as confirming every attribution.
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