Leaderboard
267All-time rank
Hundred Finance
Apr 15, 2023
$7.4M
Lost
$7.4M
Recovered
$0
Net loss
$7.4M
Unrecovered0% recovered
4M on Optimism via a flashloan-funded donation to an empty WBTC pool, exploiting rounding errors in exchange rate calculation.
How the exploit worked
View reproducible PoCDonate Inflation ExchangeRate && Rounding Error.
Lost: $7M
Source: DeFiHackLabs (SunWeb3Sec)
- Target
- DeFi
- Classification
- Token & Share Accounting
- Technique
- Donation Attack
- Attribution
- Unknown
- Chains
Optimism
Event timeline
- Apr 15, 2023Exploit executed — $7.4M drained via donation attack
- Attributed to Unknown
- Recovery status Unrecovered 0%
Data credits
- DefiLlamaIncident record, amounts, chains, recovery data and logo
- DeFiHackLabsExploit analysis and reproducible proof-of-concept (by SunWeb3Sec)