Anthropic Alleges Largest-Ever Claude Distillation Attack by Alibaba
Anthropic has disclosed that Alibaba executed the largest known distillation attack on Claude to date. The attack generated 28.8 million exchanges through nearly 25,000 fraudulent accounts between April and June 2026. This incident has been reported to the U.S. Government, highlighting a significant security concern in the industry.
- ▪Alibaba executed the largest known distillation attack on Claude to date.
- ▪The attack generated 28.8 million exchanges through nearly 25,000 fraudulent accounts.
- ▪The incident occurred between April and June 2026 and has been reported to the U.S. Government.
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MTS@MTSliveSITUATION 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 2026.1:44 PM · Jun 25, 20261.4MViews:host{display:inline-block;direction:ltr;white-space:nowrap;line-height:1}span{display:inline-block}:host([data-will-change]) span{will-change:transform}.number,.digit{padding:round(nearest, calc(var(--number-flow-mask-height, 0.25em) / 2), 1px) 0}.symbol{white-space:pre}191:where(number-flow-react){line-height:1}number-flow-react > span{font-kerning:none;display:inline-block;padding:calc(round(nearest, calc(var(--number-flow-mask-height, 0.25em) / 2), 1px) * 2)…
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