DMM Bitcoin hack on 2024-05-31 ($308M reported)
Hack on Bitcoin, 31 May 2024. Reported loss $308M. Last verified 26 Oct 2026.
critical
Reported loss
$308M
as reported by the sources
Recovered
-
nothing reported
Status
Unknown
updated 26 Oct 2026
Date
Bitcoin
Summary
The FBI, the US Defense Cyber Crime Center and Japan's National Police Agency attributed the theft of 4,502.9 BTC, worth about $308 million, from the Japanese exchange DMM Bitcoin on 2024-05-31 to North Korean actors tracked as TraderTraitor.
- Protocol
- DMM Bitcoin
- Type
- Hack
- Reported loss
- $308,000,000 · as stated: 4,502.9 BTC source: fbi.gov ↗
Facts and where they come from
| Fact | Value | Source |
|---|---|---|
| Date | May 31 | fsa.go.jp ↗ |
| Amount | 4,502.9 BTC | fbi.gov ↗ |
| Amount (USD) | $308 million | fbi.gov ↗ |
| Amount (JPY) | 約482億円相当 | npa.go.jp ↗ |
| Attribution | TraderTraitor (North Korea) | npa.go.jp ↗ |
Primary sources
- FBI, DC3 and NPA joint statement (December 23, 2024) ↗ official announcement · accessed 2026-10-26
- Financial Services Agency Japan: minister's press conference, June 4, 2024 ↗ official announcement · accessed 2026-10-26
- National Police Agency of Japan: TraderTraitor notice ↗ official announcement · accessed 2026-10-26
Our own summary of facts published by the sources above. We do not attribute fault beyond them. Amounts are as the sources state them (no USD conversion by us); links and quoted figures last checked 2026-10-26.
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