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NSA, CISA, and FBI Accuse Six Chinese AI Firms of Stealing US AI Technology in Industrial-Scale Attacks

Sep 10, 2026
Ars Technica
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Summary

The NSA, CISA, and FBI are accusing six major Chinese AI firms — including DeepSeek and Alibaba — of conducting industrial-scale attacks to steal US frontier AI technology, urging American companies to secretly downgrade suspected attackers, as tensions escalate ahead of a Trump-Xi summit.

Key Points

  • The NSA, CISA, and FBI jointly accuse six Chinese AI firms — DeepSeek, Moonshot AI, Alibaba, MiniMax, StepFun, and Z.AI — of conducting industrial-scale distillation attacks on US frontier AI models, including Claude, GPT, Gemini, and Grok, allegedly with Chinese government awareness.
  • US agencies are urging American AI companies to fight back by improving detection of suspicious account activity, secretly downgrading suspected attackers to inferior models without notice, and sharing intelligence across the AI ecosystem and allied governments.
  • China denies the accusations, calling them 'groundless,' and counters that its AI success stems from self-reliance, while also noting that US companies have themselves used Chinese models for distillation — with tensions escalating ahead of a Trump-Xi meeting on September 24.

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