Monitoring

KuCoin

CRITICALEthereum·Hot Wallet Key Compromised·#16 all-time
$281.0M stolenTuesday, September 29, 2020 · 2217 days ago

Corpus updated 2026-10-25

What happened

  • KuCoin, a centralised exchange, lost $281.0M on September 29, 2020.

  • The 2nd largest of the 46 incidents recorded in 2020: 7.1% of the $3.98B lost to hacks that year.

  • The first of 2 recorded incidents at KuCoin; the next followed in April 2023, $23K.

  • Hot Wallet Key Compromised is behind 60 recorded incidents totalling $3.08B; this is the 4th largest of them.

Cite this record

Monitoring Room, "KuCoin hack (2020) — $281.0M stolen", incident record, data: DefiLlama hacks dataset, as of 2026-10-25 08:00 UTC. https://monitoringroom.com/situation/crypto-hack/kucoin

Other recorded incidents at KuCoin

DefiLlama records 2 separate incidents under this name.

KuCoin — 2023
Unknown$23K

Nearby in the record

Eminence
9/28/2020$15.0M
WLEO
10/11/2020$42K
Soda Protocol
9/20/2020$160K
Harvest Finance
10/26/2020$24.0M
Coral
9/10/2020$420K
EtherCrash
10/30/2020$2.5M
← All incidents

Source: DefiLlama · 1317 recorded incidents · data as of 2026-10-25 08:00 UTC