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Users in Houthi-held Yemen tried to develop advanced weapons with AI, Anthropic says

Anthropic said it blocked the accounts after finding the users split work across sessions and failed to field an operational weapon, despite a guided-rocket test.

  • On Thursday, September 10, 2026, Anthropic published a threat intelligence report identifying a northern Yemen-based cell using Claude AI to develop software for three weapons programs, including guided rockets and ballistic missiles.
  • The actors utilized Claude 'in place of human software engineers' to create guidance, navigation, and control systems for weapons, including a ballistic missile designed to exceed 2,000 kilometres and a hypersonic glide vehicle variant.
  • After a field test failed, operators returned to Claude within hours to troubleshoot the error, demonstrating how the AI served as an iterative engineering partner shortening the development cycle.
  • Anthropic banned the implicated accounts and shared findings with partners, reporting no evidence the group succeeded in 'fielding an operational device' despite their development efforts.
  • This Yemen-focused case is part of a wider September 2026 report documenting six conventional-weapons investigations, including Chinese and Russian actors developing autonomous drone swarms and anti-torpedo systems.
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Lean Left

The Huthis threaten international shipping and global energy supply. In order to improve missiles, the Group apparently used Anthropic-KI. The Group says that it "blocked many requests, but not all".

·Hamburg, Germany
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Center

Anthropic does not reveal the identity of the cell but it is likely that it is these pro-Iranian insurgents who control much of northern Yemen, including the capital, Sana'a. "We have identified a malicious actor cell based in northern Yemen that carried out three weapons development programs," Anthropic said in a report explaining how it stopped illegal operations from several countries. These programs included "a guided rocket using a smartpho…

·Issy-les-Moulineaux, France
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Left

Anthropic's artificial intelligence company revealed that employees associated with the Al-Houthi militia in northern Yemen

·Syrian Arab Republic (the)
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Lean Right

The company detailed that a single operator, called ‘Deadshot’, used its artificial intelligence assistant Claude to implement a transatlantic and regional operation to manipulate the role of the United Arab Emirates in the conflict.

·Las Condes, Chile
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India Today broke the news in Noida, India on Friday, September 11, 2026.
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