Monitoring

Yearn Finance

LOWEthereum·Donation Attack·#836 all-time
$300K stolenTuesday, December 16, 2025 · 313 days ago

Corpus updated 2026-10-25

What happened

  • Yearn Finance, a defi protocol, lost $300K on December 16, 2025.

  • The 100th largest of the 148 incidents recorded in 2025: under 1% of the $2.72B lost to hacks that year.

  • One other incident was recorded the same day: FutureSwap ($270K).

  • This is the 3rd recorded incident at Yearn Finance; the previous one was in April 2023, $11.5M.

  • Donation Attack is behind 16 recorded incidents totalling $372.9M; this is the 13th largest of them.

Cite this record

Monitoring Room, "Yearn Finance hack (2025) — $300K stolen", incident record, data: DefiLlama hacks dataset, as of 2026-10-25 08:36 UTC. https://monitoringroom.com/situation/crypto-hack/yearn-finance-2025

Other recorded incidents at Yearn Finance

DefiLlama records 3 separate incidents under this name.

Yearn Finance — 2021
Ethereum$11.0M
Yearn Finance — 2023
Ethereum$11.5M

Nearby in the record

Mars Perps
12/14/2025$960K
FutureSwap
12/16/2025$270K
Ribbon
12/12/2025$2.7M
Rari Capital
12/18/2025$2.0M
ZEROBASE
12/12/2025$250K
Trust Wallet Wallet
12/25/2025$8.5M
← All incidents

Source: DefiLlama · 1317 recorded incidents · data as of 2026-10-25 08:36 UTC