I don't think you can consider distillation an attack. They trained a model on Claude without permission. The same way Claude was trained on millions of other people's work without permission. This is the environment that AI companies fought for.
SITUATION DETECTED: Anthropic has disclosed to the U.S. Government that Alibaba executed the largest known distillation attack on Claude to date, generating 28.8 million exchanges through nearly 25,000 fraudulent accounts between April and June 2026.