Sen. Warren Seeks Commerce Records on Bitmain as U.S. Scrutinizes Mining Rigs

On 28 March 2026, Sen. Elizabeth Warren pressed the U.S. Commerce Department for records on how it is addressing what she described as potential national security risks tied to Bitmain. The concerns referenced include whether China-linked remote access could enable espionage or power-grid disruption, alongside Bitmain's outsized role in mining hardware supply and recent large U.S. purchases of its rigs.