Monitoring

Cover Protocol

MEDIUMEthereum·Arithmetic Error·#204 all-time
$9.4M stolenTuesday, December 29, 2020 · 2126 days ago

Corpus updated 2026-10-25

What happened

  • Cover Protocol, a defi protocol, lost $9.4M on December 29, 2020.

  • The 9th largest of the 46 incidents recorded in 2020: under 1% of the $3.98B lost to hacks that year.

  • Arithmetic Error is behind 35 recorded incidents totalling $561.0M; this is the 8th largest of them.

Cite this record

Monitoring Room, "Cover Protocol hack — $9.4M stolen", incident record, data: DefiLlama hacks dataset, as of 2026-10-25 08:00 UTC. https://monitoringroom.com/situation/crypto-hack/cover-protocol

Nearby in the record

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12/28/2020$3.50B
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1/25/2021$104K
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12/26/2020$750K
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1/27/2021$104K
Livecoin
12/24/2020$3.3M
Cryptopia
2/1/2021$45K
← All incidents

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