Merlin

What happened

• Merlin, a defi protocol, lost $330K on June 29, 2021.

• The 109th largest of the 127 incidents recorded in 2021: under 1% of the $2.87B lost to hacks that year.

• One other incident was recorded the same day: THORChain DEX ($350K).

• This is the 3rd recorded incident at Merlin; the previous one was in May 2021, $550K.

• Arithmetic Error is behind 35 recorded incidents totalling $561.0M; this is the 20th largest of them.

Cite this record

Monitoring Room, "Merlin hack (2021) — $330K stolen", incident record, data: DefiLlama hacks dataset, as of 2026-10-25 09:36 UTC. https://monitoringroom.com/situation/crypto-hack/merlin-2021-bsc

Other recorded incidents at Merlin

DefiLlama records 3 separate incidents under this name.

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