Which companies just had a verified incident, who lends to them and who owns them. Every claim carries its evidence level and its source. How we decide what is confirmed
Upbit
crypto exchange · KR · East Asia · Dunamu Inc.
South Korea's largest exchange Upbit detected an unauthorized transfer of about 44.5B KRW in Solana-network assets at 04:42 KST on 27 Nov 2025 and suspended all crypto deposits and withdrawals. It reported to KISA and the FSS and promised full compensation.
- First disruption
- Nov 26 19:42 UTC
- First public signal
- Nov 27 (Upbit notice suspending Solana network deposits and withdrawals)
- Acknowledged
- Nov 27
- Restored
- not yet
- Duration
- not established
- DFX first recorded
- Nov 5 14:58 UTC
What was restricted
Solana-network deposits and withdrawals suspended first, then all virtual asset deposits and withdrawals from 08:55 KST; trading continued; Upbit pledged full compensation from own assets.
Financial impact: 44.5B KRW (about 30.4M to 37M USD), revised down from 54B KRW (company figure).
Cause, kept in separate layers
- What the institution said
- Abnormal (unauthorized) transfer of Solana-network assets from a hot wallet to an external address
- DFX classification
- Confirmed cyber (cyber: confirmed)
- Analytical hypothesis (not established)
- Korean media and analysts suspected DPRK Lazarus Group; not confirmed in retrieved sources.
- Conflicting reports
- Loss stated as 30M to 38.5M USD. original_text is a paraphrased Korean rendering of the 08:55 suspension reported in English sources, not a verbatim quote.
Evidence
- Korea JoongAng Daily · 2025-11-27
- The Block · 2025-11-27
- Cointelegraph · 2025-11-27