Old Second National Bank
Data Breach on October 18, 2023
| Data Breach Report | ||
|---|---|---|
| Victim | oldsecond.com | |
| Claimed By | 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 68 credentials for oldsecond.com itself.
Last checked Oct 4, 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 | 138 accounts · most recent Aug 23, 2026 |
| Passwords for oldsecond.com accounts | |
|---|---|
| Combo lists | 67 logins · most recent Oct 1, 2026 |
| Infostealer logs | 17 logins · 14 infected devices · most recent Sep 27, 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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Old Second National Bank was breached. Check if your company's credentials have been exposed in this or other data breaches.
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