1inch Swap

What happened

• 1inch Swap, a defi protocol, lost $5.0M on March 7, 2025.

• The 41st largest of the 148 incidents recorded in 2025: under 1% of the $2.72B lost to hacks that year.

• This is the 2nd recorded incident at 1inch Swap; the previous one was in October 2024, $723K.

• Arbitrary External Call is behind 30 recorded incidents totalling $37.1M; this is the 2nd largest of them.

Cite this record

Monitoring Room, "1inch Swap hack (2025) — $5.0M stolen", incident record, data: DefiLlama hacks dataset, as of 2026-10-25 08:00 UTC. https://monitoringroom.com/situation/crypto-hack/1inch-swap-2025

Other recorded incidents at 1inch Swap

DefiLlama records 2 separate incidents under this name.

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