Elizabeth Warren presses Commerce Secretary on Bitmain amid U.S. security review

Sen. Elizabeth Warren has sent a letter to Commerce Secretary Howard Lutnick seeking details on how the U.S. is addressing security risks tied to Bitcoin mining hardware supplied by Bitmain Technologies Ltd., Bloomberg reported. Warren asked for greater clarity on the government's approach to managing potential vulnerabilities associated with mining rigs. Bitmain is a dominant supplier of Bitcoin mining equipment globally and has previously been linked to a federal investigation. U.S. officials may assess whether foreign-made hardware presents security risks.