Security incident · 2025-12-27
Flow
According to the public DefiLlama incident dataset, Flow (Flow) suffered a security incident on 2025-12-27, with about $3.9M reported lost.
| Date | 2025-12-27 |
|---|---|
| Reported loss | $3.9M |
| Chain | Flow |
| Target type | Layer 1 |
| Technique class | Token & Share Accounting |
| Technique | Infinite Mint |
| Bridge incident | No |
| Within 2025 | #45 by loss that year, 0.1% 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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