Security incident · 2026-04-23
Giddy
According to the public DefiLlama incident dataset, Giddy (Ethereum) suffered a security incident on 2026-04-23, with about $1.3M reported lost.
| Date | 2026-04-23 |
|---|---|
| Reported loss | $1.3M |
| Chain | Ethereum |
| Target type | DeFi Protocol |
| Technique class | Input Validation |
| Technique | Incomplete Signature Coverage |
| Bridge incident | No |
| Within 2026 | #102 by loss that year, 0.1% of all reported losses that year |
How this kind of attack works
The contract did not check the parameters it received, and the attacker passed crafted data that made it do something it should not.
Would a pre-payment check have helped
Missing input validation is a contract code defect for code audits.
Other incidents with the same technique
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- Orbit Bridge2023-12-31 · $81.7M
- Qubit2022-01-28 · $80.0M
- Cashio2022-03-23 · $52.8M
- Hedgey2024-04-19 · $44.7M
- Transit Swap2022-10-02 · $28.9M