DMM Bitcoin Exchange Hit by $305M Hack

Japanese cryptocurrency exchange DMM Bitcoin has disclosed a significant breach resulting in the loss of 4,502.9 BTC, equivalent to $305 million, to hackers. The stolen funds were reportedly divided into 10 wallets, with each holding batches of 500 BTC, according to data provided by security firm Blocksec.

In response to the breach, DMM Bitcoin has assured customers that it will cover the full amount lost by procuring an equivalent sum of BTC with the support of its group companies. Additionally, the exchange has implemented measures to prevent further unauthorized outflows of funds.

To mitigate the impact of the hack, DMM Bitcoin has temporarily restricted all spot buys on its platform. Furthermore, customers withdrawing Japanese yen may experience delays, as indicated by the exchange.

This incident marks one of the largest cryptocurrency hacks in Japan since the notorious Coincheck breach in 2018, which saw losses totaling 58 billion yen. With over $473 million lost to cryptocurrency hacks in 2024 before this incident, the security of digital assets remains a pressing concern within the cryptocurrency ecosystem.

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