The world's leading manufacturer of Bitcoin (BTC) mining equipment, Beijing-based Bitmain Technologies Ltd., has been under a national security probe in the U.S. for months now, as per a recent Bloomberg report. Bitcoin mining is the process of using high-end computer systems to solve cryptographic functions, validate transactions, and add blocks to the network in return for BTC rewards. While the U.S. leads the world in mining Bitcoin, it is China that is the global leader in manufacturing mining rig equipment. The world's three largest manufacturers of Bitcoin mining machines, namely Bitmain, Canaan, and ... (full story)