Odaily News Japanese cryptocurrency exchange DMM Bitcoin suffered a $305 million hack, with 4,502.9 bitcoins reportedly stolen from the exchange. DMM Bitcoin said it would guarantee the full amount of the stolen money, and all spot purchases are currently subject to temporary restrictions, and customers withdrawing yen may face delays. It is reported that this is the second largest hacker attack loss for a Japanese cryptocurrency exchange. In 2018, Coincheck was hacked and lost 58 billion yen. (Coindesk)