DMM Bitcoin, one of the popular Bitcoin exchanges in Japan, has shut down following a $320 million hack in May 2024.Assets, including Japanese yen and cryptocurrencies, will be transferred to SBI VC Trade before March 2025.The hack exposed shortcomings in DMM Bitcoin's risk management, leading to an improvement order from Japan's Financial Services Agency.This incident highlights the cybersecurity risks faced by the cryptocurrency industry and the need for regulatory control.