Incident All ledgers
Euler V1: $197.0m
Euler V1 lost $197.0m on 13 March 2023. Ranked 22nd of 1,272 crypto failures, with method, returned funds and comparable incidents.
- Date
- 13 March 2023
- Lost
- $197.0m
- Returned or repaid
- $240.0m
- Target
- DeFi Protocol
- Category
- Token & Share Accounting
- Method
- Donation Attack
- Chains
- Ethereum
Euler Finance was exploited on March 13, 2023 through a flash loan attack abusing its donateToReserves function, taking about $197M in DAI, USDC, stETH and WBTC. The attacker returned the funds, with recovery completed by early April.
Against the ledger
- It ranks 22nd of the 1,272 incidents with a known loss, and 2nd in 2023.
- It accounts for 87.3% of the $225.7m in known losses in March 2023.
- 160 incidents in the ledger are classified as Token & Share Accounting, for $1.45bn in total. This one is 13.6% of that.
- $240.0m is recorded as returned or repaid, 100.0% of the amount taken.
Closest in size by the same method
| Date | Target | Lost | Type | Method | Returned |
|---|---|---|---|---|---|
| 22 May 2025 | Cetus CLMM | $223.0m | DeFi Protocol | Arithmetic Error | — |
| 29 Sept 2021 | Compound V2 | $147.0m | DeFi Protocol | Arithmetic Error | — |
| 03 Nov 2025 | Balancer V2 | $128.0m | DeFi Protocol | Rounding Error | — |
| 30 Aug 2026 | Tectonic | $124.5m | DeFi Protocol | Donation Attack | — |
| 05 Jun 2022 | Elrond | $113.0m | DeFi Protocol | Infinite Mint | — |
All failures in 2023 · The failures ledger
Amounts are DefiLlama’s estimates and can change as incidents are revalued. Its returned figure can include money a company repaid itself, not only funds recovered from attackers. Source: DefiLlama.
Cite this Bitminer.io, “Euler V1, failures ledger”, data to 2 November 2026, https://bitminer.io/ledger/incident/euler-v1-2023-03-13/. How this is built