Microsoft filed an amicus brief in a San Francisco federal court to support Anthropic in a lawsuit against the U.S. Department of Defense. The company backed a request for a temporary restraining order to pause a supply chain risk designation and prevent costly disruptions for government contractors. Microsoft integrates Anthropic products into U.S. military technology and argues that suppliers require time to rebuild affected offerings. A group of 37 researchers from OpenAI and Google filed a similar supportive brief on Monday.






