The U.S. Department of Defense has announced an unprecedented classification of the AI company Anthropic as a 'supply chain risk', a move that may prevent government contractors from utilizing its technologies, including the AI chatbot Claude. This classification was communicated to the company officially, with immediate effect, meaning that its technologies will be barred from any work related to military contracts or projects for the U.S. military. The decision reflects a significant escalation in the ongoing tensions between the company and the U.S. administration led by President Donald Trump and Defense Secretary Pete Hegseth, which last week accused Anthropic of jeopardizing national security due to its refusal to amend technology usage policies.