DMM Bitcoin lays out fundraising plan to repay theft victims

Cause of $300 million-plus “unauthorized leak” still unknown as company gets set for big fundraise

article-image

Roman Samborskyi/Shutterstock modified by Blockworks

share

A Japanese crypto exchange plans to pay back victims of a recent unauthorized leak in the coming days via raising capital.

DMM Bitcoin reiterated in a translated post that it would make available the entire amount of customer-held bitcoin lost in the leak “with support from our group companies.”

The company took out a loan worth $32 million, or five billion yen, on Monday. 

Read more: Japanese crypto exchange reports bitcoin theft worth $305M

DMM Bitcoin noted it planned to raise $310 million (48 billion yen) on June 7. It then seeks to secure an additional roughly $13 million (two billion yen) in subordinated debt on June 10.

The update comes about a week after DMM Bitcoin revealed 4,502.9 BTC — worth $305.1 million at the time — was stolen. After the theft took place on May 31 at 12:26 am ET (1:26 pm JST), the company stopped processing crypto withdrawals, spot market purchase orders and new leveraged trading positions.

DMM Bitcoin quickly said customer bitcoin deposits would be fully guaranteed — a promise the company has now repeated in its latest post. 

The crypto exchange intends to release a report with more details about the leak when it has them.

“We will continue to procure [b]itcoin equivalent to the amount leaked, taking care not to impact the market,” the company wrote. “We are currently continuing to conduct an investigation to determine the cause of the unauthorized leak.”


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Upcoming Events

Old Billingsgate

Mon - Wed, October 13 - 15, 2025

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

Research

article-image

Firedancer begins delegating stake to Solana validators

article-image

A vote ending Monday could introduce a new layer of security for Ethereum’s largest liquid staking protocol

article-image

Framework’s Michael Anderson explains what tokens need in order to be successful

article-image

Conferences are pop-up innovation clusters—and filters for the riff-raff

article-image

Tariff front-running may have caused an artificial bounce in economic data earlier this year

article-image

Waka Flocka Flame-linked BaseDrop is raising some eyebrows