31 May 2024 (disclosure; theft timing per investigators)
DMM Bitcoin: 4,502.9 BTC Unauthorized Outflow
DMM Bitcoin: on 31 May 2024 it announced an unauthorized outflow of 4,502.9 BTC. FBI, DC3 and Japan's NPA later attributed the theft (~$308M) to DPRK actors tracked as TraderTraitor.
- Event date
- Incident typeExchange wallet compromise
- Bug classNot yet published
- Published
Loss, as sourced
4,502.9 BTC, per DMM Bitcoin's 31 May 2024 announcement. FBI/DC3/NPA later stated theft of $308 million USD from Bitcoin.DMM.com by DPRK cyber actors tracked as TraderTraitor.
Traceability
Primary sources
- 01bitcoin.dmm.comDMM Bitcoin announcement, 31 May 2024 (opens in a new tab)
- 02fbi.govFBI/DC3/NPA press release (opens in a new tab)
In brief
Root cause: Not published by DMM in detail. Attribution claimed by FBI/DC3/NPA as TraderTraitor (DPRK).
Timeline, as sourced: Per DMM: 31 May 2024 public announcement of 4,502.9 BTC outflow. Later joint law-enforcement attribution.
Account, as sourced
Claimed (DMM Bitcoin): unauthorized outflow of 4,502.9 BTC.
Claimed (FBI/DC3/NPA): TraderTraitor responsible for $308M theft from Bitcoin.DMM.com.
Unknown: DMM's technical root-cause writeup.
Summaries of public sources as of the published date; except where marked (on-chain), not independently verified by NullMeridian. Figures are the sources’ own and are attributed; where sources disagree, each is given. Sources may since have changed. Not legal, financial or investment advice.
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