Microsoft takes Anthropic's side in DOD fight, warns it sets a new precedent

In a court briefing, Microsoft argues the Defense Department is using a national security policy designed for foreign adversaries against a U.S. company over a contract dispute.

Microsoft has filed a brief in support of Anthropic in the artificial intelligence tech company's ongoing battle with the Defense Department.

The company filed on Tuesday at the U.S. District Court in Northern California, where Anthropic filed suit earlier this month challenging DOD’s determination that the company is a supply chain risk to national security.

Microsoft is arguing for a temporary restraining order on enforcement of the determination. Microsoft believes the ban would harm the company and other contractors that have deeply embedded Anthropic’s technology into their products.

Known as an amicus brief, the three-page document from Microsoft also lays out its argument over why DOD’s determination that Anthropic is a supply chain risk sets a dangerous ...