
Anthropic accuses Alibaba of running the largest known distillation attack on Claude — 28.8 million exchanges via 25,000 fake accounts
Anthropic told US senators and the White House that operators linked to Alibaba's Qwen AI lab used nearly 25,000 fraudulent accounts to extract Claude's capabilities through 28.8 million exchanges between April and June 2026, surpassing all previous known Chinese distillation campaigns combined.










