Major Hack at DMM Bitcoin Exchange: $300 Million in Bitcoin Stolen

  • Japanese cryptocurrency exchange DMM Bitcoin has experienced a significant security breach, resulting in the loss of 4,502.9 Bitcoins, equating to approximately $300 million.
  • The incident was swiftly detected, and immediate countermeasures were put in place to prevent further unauthorized access.
  • Chainalysis has confirmed this as the largest crypto hack since December 2022 and among the top seven biggest in history.

Major hack at Japanese crypto exchange DMM Bitcoin results in $300 million loss, sparking industry-wide security concerns.

Major Security Breach at DMM Bitcoin Exchange

At 1:26 p.m. (4:26 a.m. GMT), DMM Bitcoin, a prominent Japanese cryptocurrency exchange, detected unauthorized access that led to the loss of 4,502.9 Bitcoins, totaling around $300 million. The platform promptly enacted stringent measures to halt any further unauthorized transactions. This breach has brought to light critical vulnerabilities within the exchange’s security infrastructure.

Exchange’s Immediate Response and Measures

Following the detection of the hack, DMM Bitcoin took swift action to secure its platform. The exchange implemented immediate stop-gap measures, including halting all spot trading activities and notifying users about potential delays in Japanese yen withdrawals. Furthermore, DMM Bitcoin has assured its clients that it will cover the entire amount of the stolen Bitcoins through collaborations with group companies, ensuring no user suffers financial loss.

Industry Reaction and Historical Context

Chainalysis, a prominent blockchain analysis firm, noted this incident as the most significant hack since December 2022 and the seventh-largest in cryptocurrency history. The breach has prompted widespread concern within the crypto community regarding the security protocols of exchanges. Industry experts call for enhanced security measures, continuous monitoring, and regulatory oversight to prevent future incidents.

Public Statements and Security Enhancements

In a public statement, DMM Bitcoin reassured its commitment to user security and transparency. The exchange has introduced additional security enhancements and restricted certain services to fortify its defenses. Despite the severity of the breach, DMM Bitcoin’s commitment to reimbursing affected users highlights its dedication to maintaining trust and credibility in the market.


This significant security breach at DMM Bitcoin underscores the ongoing challenges faced by cryptocurrency exchanges in safeguarding digital assets. While DMM Bitcoin’s swift response and assurance to cover losses help mitigate the immediate impact, the incident serves as a stark reminder of the critical need for robust security frameworks in the evolving crypto landscape. As the industry grows, continuous improvements in security protocols will be essential to maintaining user trust and preventing future breaches.

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Lucien Renard
Lucien Renard
Lucien Renard is a 24-year-old writer specializing in cryptocurrency analysis and price action. With a focus on technical analysis, Lucien provides valuable insights into market trends and potential opportunities for investors.

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