Anthropic tells Congress Alibaba-linked operators ran 28.8M-exchange distillation attack on Claude
deanwball · x · 2026-10-19
Dean Ball shares a set of official documents naming and quantifying model-distillation attacks: an Anthropic letter to the US Senate Banking Committee alleging Alibaba/Qwen-affiliated operators ran 25,000 fraudulent accounts generating 28.8M+ exchanges with Claude between April 22 and June 5, 2026 — the largest known distillation attack, targeting agentic reasoning, software engineering, and long-horizon capabilities. Also shown: Anthropic's Feb 2026 policy post on detecting and preventing distillation attacks, and OpenAI's Sep 2026 report on disrupting a coordinated model-distillation campaign.
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