Security incident · 2026-05-20
MAP Protocol
According to the public DefiLlama incident dataset, MAP Protocol (Ethereum, BSC) suffered a security incident on 2026-05-20, with about $110K reported lost.
| Date | 2026-05-20 |
|---|---|
| Reported loss | $110K |
| Chain | Ethereum, BSC |
| Target type | Chain |
| Technique class | Token & Share Accounting |
| Technique | Infinite Mint |
| Bridge incident | Yes |
| Within 2026 | #217 by loss that year, 0.0% 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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