Anthropic said it detected unauthorized efforts by China-based AI labs including Alibaba and Moonshot AI to use its Claude models to help improve their own AI systems.

The report documents threat actors using Claude to research and develop drone swarms, anti-torpedo weapons systems, and targeting recommendations.

An Iran-linked actor used Anthropic’s Claude AI to collect publicly available information on U.S.

Anthropic linked Alibaba to more than 151 million Claude exchanges and DeepSeek to another 12.1 million as Chinese labs sought advanced reasoning capabilities.

A new report from Anthropic revealed five cases of “biological misuse” in which suspicious actors sought to use Claude AI to conduct deadly virus research and investigate toxic venom.

Anthropic said Alibaba, Moonshot, Zhipu, DeepSeek, and Xiaomi all tried to use Claude to train their models in various ways.

AI was used to develop missile guidance software in Yemen and to power cyber operations, a report alleges.

Claude was developed by Anthropic, a San Francisco-based company founded in 2021 by former OpenAI employees focusing on AI safety and research. Dario Amodei, the co-founder and CEO of Anthropic, had served as vice president of research at OpenAI. His sister Daniela Amodei serves as Anthropic’s president.

Anthropic has secured up to $517 billion in cloud, chip, and data center deals over the next decade, adding 14.8 GW of compute capacity ahead of