Merlin

What happened

• Merlin, a defi protocol, lost $550K on May 26, 2021.

• The 97th 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: Merlin ($680K).

• The first of 3 recorded incidents at Merlin; the next followed in May 2021, $680K.

• Rounding Error is behind 17 recorded incidents totalling $197.3M; this is the 6th largest of them.

Cite this record

Monitoring Room, "Merlin hack (2021) — $550K stolen", incident record, data: DefiLlama hacks dataset, as of 2026-10-25 08:00 UTC. https://monitoringroom.com/situation/crypto-hack/merlin-2021

Other recorded incidents at Merlin

DefiLlama records 3 separate incidents under this name.

Nearby in the record