Anthropic accuses Alibaba of largest Claude cloning attack using 25,000 accounts (arstechnica.com)

• Anthropic alleges Alibaba used 25,000 accounts to clone Claude over 28.8 million interactions.
• The attacks occurred between April 22 and June 5, 2026.
• Anthropic calls for updated antitrust laws, chip export controls, and legislation against Chinese labs.

"Anthropic alleges Alibaba used 25,000 fraudulent accounts to generate 28.8 million interactions with Claude between April 22 and June 5, 2026, aiming to extract capabilities for a rival model. The company demands stricter US chip export controls and legislation to punish Chinese labs for illicit distillation attacks."