Sen. Elizabeth Warren has stepped up scrutiny of China-based Bitmain after U.S. authorities launched “Operation Red Sunset” last year to investigate alleged espionage and risks to the power grid. Her push raises the prospect of new oversight or restrictions on foreign mining hardware.
Bitmain has discounted multiple rigs including the Antminer S19 and S21 and is offering select bundle deals where buyers can name their own price, a sign of pressure from a falling hashprice. The move underscores stress in miner economics as revenue per TH/s declines.
Bloomberg reports U.S. authorities are investigating Bitmain for potential national security risks tied to alleged remote-access capabilities in its Bitcoin mining hardware. The probe could increase scrutiny on mining supply chains and U.S.–China tech ties.