Anthropic says it disrupted unauthorized efforts to train rival models using Claude, alleging Alibaba generated 151M+ exchanges and Moonshot 23M+ between May and July. It attributed 12M+ distillation attacks to DeepSeek over 14 days.
It also alleges Moonshot and DeepSeek forwarded customer requests to Claude without users’ knowledge, with some containing sensitive data.
The three companies did not immediately respond to CNBC.