Old Second National Bank
Data Breach on October 18, 2023
| Data Breach Report | ||
|---|---|---|
| Victim | oldsecond.com | |
| Threat Actor | ALPHV | |
| Date Discovered | Oct 18, 2023 | |
| Description | Old Second National Bank is a national banking organization that provides commercial, treasury management and retail banking services. | |
| Leak Size | Unknown |
Credential Exposure for oldsecond.com
We've indexed 295 @oldsecond.com accounts from external breaches, plus 63 credentials for oldsecond.com itself.
Last checked Aug 16, 2026
| @oldsecond.com addresses from external breaches | |
|---|---|
| Third-party breaches | 294 accounts · across 89 breaches · 279 with a plaintext password · most recent Aug 18, 2024 |
| Combo lists | 131 accounts · most recent Aug 6, 2026 |
| Passwords for oldsecond.com accounts | |
|---|---|
| Combo lists | 62 logins · most recent Aug 15, 2026 |
| Infostealer logs | 15 logins · 12 infected devices · most recent Aug 4, 2026 |
Logins may belong to customers or to staff, and the data doesn't say which. None of this is necessarily connected to the ransomware attack above.
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