Security incident · 2022-11-23
Numbers Protocol
According to the public DefiLlama incident dataset, Numbers Protocol (Ethereum) suffered a security incident on 2022-11-23, with about $14K reported lost.
| Date | 2022-11-23 |
|---|---|
| Reported loss | $14K |
| Chain | Ethereum |
| Target type | DeFi Protocol |
| Technique class | Bridge & Cross-Chain |
| Technique | Bridge Logic Flaw |
| Bridge incident | Yes |
| Within 2022 | #168 by loss that year, 0.0% of all reported losses that year |
How this kind of attack works
A bridge confirms on one chain and releases on another. When confirmation was bypassed, the attacker received assets on the target chain without depositing.
Would a pre-payment check have helped
Bridge mint/verification flaws happen inside the bridge and are addressed by its own security design and audits.
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