Home Markets Microsoft backs Anthropic in amicus brief to halt US DOD’s ’supply-chain risk’ designation Microsoft backs Anthropic in amicus brief to halt US DOD’s ’supply-chain risk’ designation Andrew M Mar 11, 2026 comments off Tweet on Twitter Share on Facebook Google+ Pinterest Original source: https://www.investing.com/news/stock-market-news/microsoft-files-amicus-brief-in-support-of-anthropics-lawsuit-with-us-dod-4553251 Department of Defense Market Updates Microsoft www.investing.com/news/stock-market-news/microsoft-files-amicus-brief-in-support-of-anthropics-lawsuit-with-us-dod-4553251