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NSA and CISA tell AI firms to quietly serve worse models to distillers

10 September 2026
NSA and CISA tell AI firms to quietly serve worse models to distillers
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NSA and CISA tell AI firms to quietly serve worse models to distillers

The NSA, CISA and the FBI published a joint cybersecurity advisory on 8 September naming six Chinese AI companies and accusing them of extracting billions of tokens from US frontier models since at least late 2024. The advisory, AA26-251A, names DeepSeek, Moonshot AI, Alibaba, MiniMax, StepFun and Z.AI, and says the activity was likely conducted with the awareness of the Chinese government.

Key Takeaways

  • Joint advisory AA26-251A, published 8 September, names DeepSeek, Moonshot AI, Alibaba, MiniMax, StepFun and Z.AI
  • The agencies say the six extracted billions of tokens from Claude, GPT, Gemini and Grok since at least late 2024, likely with Chinese government awareness
  • It recommends serving downgraded or altered responses to suspected distillers, varying them between requests, and not telling the accounts affected
  • Distillation is a standard training technique, so the case rests on scale and intent rather than the method itself

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