DMM Bitcoin to shut down after $320 million hack loss

DMM Bitcoin, a Japanese cryptocurrency exchange, is preparing to wind down its operations after suffering a significant loss of $320 million in Bitcoin due to a hack in May. The breach, which compromised a private key linked to a wallet holding over 4,500 Bitcoin, forced the company to halt its restructuring efforts and focus on safeguarding customer assets. In response, DMM Bitcoin has arranged to transfer all customer accounts and assets to SBI VC Trade, a crypto exchange operated by financial giant SBI Group, with the transition expected to be completed by March 2025.

The company confirmed that customer assets, including Japanese yen and cryptocurrencies, will be secure during the move. Despite initial assurances that customer deposits would be protected, DMM Bitcoin was forced to suspend withdrawals, new account registrations, and trading following the attack. The company also pledged to compensate affected users by procuring an equivalent amount of Bitcoin, backed by its group companies.

The hack is one of Japan’s largest crypto breaches, second only to the $530 million Coincheck hack in 2018. Blockchain analysts have linked the breach to the Lazarus Group, a North Korean cybercrime organisation, suggesting similarities in laundering techniques. DMM Bitcoin, which launched in 2018, has also been facing challenges with its Web3 gaming project and stablecoin initiatives, ultimately leading to the decision to wind down its operations.

This attack is part of a broader trend of rising cyberattacks on cryptocurrency exchanges in 2024, including major breaches of other exchanges such as WazirX, BingX, and BtcTurk. The growing frequency of such incidents underscores the ongoing risks facing centralized crypto platforms.