Security incident · 2023-01-16
LendHub
According to the public DefiLlama incident dataset, LendHub (Heco) suffered a security incident on 2023-01-16, with about $6.0M reported lost.
| Date | 2023-01-16 |
|---|---|
| Reported loss | $6.0M |
| Chain | Heco |
| Target type | DeFi Protocol |
| Technique class | Token & Share Accounting |
| Technique | Incorrect Share Accounting |
| Bridge incident | No |
| Within 2023 | #34 by loss that year, 0.4% of all reported losses that year |
How this kind of attack works
The contract's bookkeeping was wrong, for example the conversion between shares and assets, so the attacker redeemed far more than they put in.
Would a pre-payment check have helped
Accounting and share-math bugs are contract-layer problems for code audits.
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