Anthropic Says Russian, Chinese Threat Actors Used Its AI Model Claude for Malicious Activity

Anthropic said on Sept. 10 that it had disrupted malicious campaigns involving the use of its artificial intelligence model Claude, including operations allegedly linked to threat actors in China and Russia.
The company said the threat actors include suspected state-sponsored groups, financially motivated criminals, commercial spyware vendors, state propaganda institutions, and politically motivated individuals.
According to its report, most of the cyber operations detected between December 2025 and August 2026 were enabled by AI through direct execution or orchestration. Humans remained involved in selecting targets and reviewing exfiltration, it stated.
“The use of AI went beyond simple questions and responses from a chatbot but rather involved the use of multi-agent frameworks executing reconnaissance, exploitation, and data exfiltration,” Anthropic said….