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DeepSeek

Controversies

Controversies tied to this brand in public sources. A listing is not a finding of fault.

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  1. 2026

    Anthropic allegation concerning Claude-generated training data

    Anthropic accused DeepSeek of using thousands of fraudulent accounts to generate large volumes of conversations with Claude for possible model training. The claim is reported as an allegation and should not be treated as a proven violation without further authoritative findings.

    Source

  2. 2026

    Anthropic report alleges Alibaba, Moonshot AI and DeepSeek used Claude outputs without authorization to train their own models

    Issue disclosure

    Anthropic said in a threat intelligence report released on September 10, 2026 that it detected and disrupted unauthorized large-scale "distillation" of its Claude models by China-based AI labs including Alibaba, Moonshot AI and DeepSeek, which allegedly used Claude outputs to train and improve their own models such as Qwen and Kimi.

    Stated objective. The activity was aimed at extracting capabilities from Claude to help train and improve other AI models

    Source excerpt

    • The company said the activity was aimed at extracting capabilities from Claude to help train and improve other AI models.
    • Anthropic said operators affiliated with Alibaba used Claude outputs to help train its Qwen models, while Moonshot routed some Kimi user requests to Claude and used some of the resulting exchanges to train its own models.
    • The company said DeepSeek — which rose into prominence last year due to its capabilities and cheap costs — also used tactics similar to Moonshot, transferring exchanges to Claude without notifying DeepSeek customers.
    Source

  3. 2026

    U.S. restricts DeepSeek technology in federal civilian agencies

    Ban or restriction

    In 2026, the U.S. Department of Homeland Security issued an order requiring federal civilian agencies to remove DeepSeek-related technology from their IT systems and barring them from procuring DeepSeek products and services. According to the order, the stated concerns were potential access to sensitive government data and cybersecurity vulnerabilities. The directive applies to federal civilian agencies and covers both the removal of existing DeepSeek-related technology from agency IT systems and a prohibition on purchasing DeepSeek products and services. The order did not, as described in the available summary, specify further measures beyond these requirements.

    Source excerpt

    • DeepSeek's AI models "present multiple threat vectors," the latest DHS order states, citing concerns over potential access to sensitive data by Chinese authorities and potential cybersecurity vulnerabilities.
    • The Department of Homeland Security on Monday made public the order requiring federal civilian agencies to remove DeepSeek-related technology from their IT systems and barring them from procuring DeepSeek products and services.
    • The order, originally issued on July 24, applies to federal civilian agencies, including the Treasury, State and Justice departments, but it excludes the Department of Defense.
    Source

  4. 2025

    Security, privacy, censorship, and defense-affiliation scrutiny

    DeepSeek’s rapid international growth prompted scrutiny over data handling, privacy, content controls, Chinese regulatory obligations, and reported relationships between some researchers and Chinese military or defense-related institutions. These concerns formed part of wider geopolitical debate about Chinese AI systems, but the available reference material does not establish a single adjudicated scandal or final legal determination.

    Source