Leaderboard
457All-time rank
S
SecondFi
Jun 23, 2026
$2.4M
Lost
$2.4M
Recovered
$0
Net loss
$2.4M
Unrecovered0% recovered
Between June 21-23, 2026, deterministic nonce reuse in SecondFi's Cardano signing code (one missing line) exposed 374 wallet private keys through all historical signatures. 5M ADA.
Total exposure: $20M+.
- Target
- Wallet
- Classification
- Key Compromise
- Technique
- Weak Key Generation
- Attribution
- Unknown
- Chains
Cardano
Event timeline
- Jun 23, 2026Exploit executed — $2.4M drained via weak key generation
- Attributed to Unknown
- Recovery status Unrecovered 0%