Leaderboard
807All-time rank
Cozy V2
Aug 30, 2025
$427K
Lost
$427K
Recovered
$0
Net loss
$427K
Unrecovered0% recovered
Cozy Finance lost $427K on August 29, 2025 on Optimism when completeWithdraw function lacked caller verification, letting attacker complete withdrawals using only a user's redemption ID.
- Target
- DeFi
- Classification
- Input Validation
- Technique
- Missing Input Validation
- Attribution
- Unknown
- Chains
Optimism
Event timeline
- Aug 30, 2025Exploit executed — $427K drained via missing input validation
- Attributed to Unknown
- Recovery status Unrecovered 0%