• Dapps:16.23K
  • Blockchains:78
  • Active users:66.47M
  • 30d volume:$303.26B
  • 30d transactions:$879.24M

Security Breach at DMM Bitcoin Exchange

user avatar

by Giorgi Kostiuk

2 years ago


Today, the prominent cryptocurrency exchange DMM Bitcoin experienced a security breach, resulting in the unauthorized exposure of 4,502.9 BTC, valued at around 48.2 billion yen. This breach has unsettled the cryptocurrency community and investors.

Prompt Response and Service Halts

DMM Bitcoin acted swiftly by suspending various services including new account vetting, cryptocurrency withdrawals, and leveraged trading order placements. The exchange now only facilitates selling orders for spot trading to swiftly stabilize the situation.

Furthermore, DMM Bitcoin faced allegations of a potential hack with reports suggesting a theft of $300 million in Bitcoin. To reassure users, the exchange pledged to procure an equivalent amount of Bitcoin to cover the leaked funds, with the support of its affiliated companies.

Reassurance and Regulatory Adherence

Emphasizing compliance with Japanese laws mandating the segregation of company and customer assets, DMM Bitcoin employs robust security practices, storing over 95% of customer funds in cold wallets.

Despite these precautions, the recent breach raises concerns about the security of both hot and cold storage systems. This incident draws parallels to the 2018 case where Coincheck lost NEM tokens worth 58 billion yen, prompting regulatory enhancements by the Financial Services Agency.

As DMM Bitcoin faces this crisis, the cryptocurrency industry closely monitors the broader implications of such security breaches.

0

Rewards

chest
chest
chest
chest

More rewards

Discover enhanced rewards on our social media.

chest

Other news

Relai: The Leading Bitcoin App in Switzerland

chest

Relai has emerged as a popular choice for users in Switzerland and the Eurozone seeking a simple and secure way to buy Bitcoin.

user avatarNguyen Van Long

Gemini Integrates RLUSD on XRP Ledger for Enhanced Transactions

chest

Gemini is adding support for RLUSD on the XRP Ledger to provide faster transactions and lower fees.

user avatarSatoshi Nakamura

Polymarket Launches iOS App to Enhance User Experience

chest

Polymarket launched its iOS app in December 2025 to enhance user experience, focusing on sports markets and achieving over 200,000 signups in its first week.

user avatarRajesh Kumar

Ostium Introduces a Decentralized Platform for Trading Perpetual Futures.

chest

Ostium, a decentralized exchange protocol, allows users to trade perpetual futures contracts on various real-world assets on the Arbitrum blockchain.

user avatarJesper Sørensen

Citadel Securities Calls for Caution in DeFi Regulations

chest

Citadel Securities has urged US regulators to carefully consider exemptions for trading tokenized US equities on DeFi platforms, emphasizing the need for investor protections.

user avatarFilippo Romano

Polymarket and Kalshi Achieve Milestone with $10 Billion in Trading Volume

chest

Polymarket and Kalshi report a combined trading volume of $10 billion, marking a significant milestone in the prediction market space.

user avatarKaterina Papadopoulou

Important disclaimer: The information presented on the Dapp.Expert portal is intended solely for informational purposes and does not constitute an investment recommendation or a guide to action in the field of cryptocurrencies. The Dapp.Expert team is not responsible for any potential losses or missed profits associated with the use of materials published on the site. Before making investment decisions in cryptocurrencies, we recommend consulting a qualified financial advisor.