Fiserv
Data Breach on May 04, 2026
| Data Breach Report | |||
|---|---|---|---|
| Victim | fiserv.com | ||
| Claimed By | Everest | ||
| Date Discovered | May 04, 2026 | ||
| Description | Fiserv, Inc. is a financial technology company based in the USA (Wisconsin) that provides payments processing, digital banking, and financial services software solutions for banks, businesses, and merchants. | ||
| Leak Size | Unknown |
Credential Exposure for fiserv.com
We've indexed 20,340 @fiserv.com accounts from external breaches, plus 1,435 credentials for fiserv.com itself.
Last checked Oct 25, 2026
| @fiserv.com addresses from external breaches | |
|---|---|
| Combo lists | 14,264 accounts · most recent Oct 25, 2026 |
| Third-party breaches | 8,072 accounts · across 509 breaches · 7,457 with a plaintext password · most recent Oct 6, 2026 |
| Passwords for fiserv.com accounts | |
|---|---|
| Combo lists | 1,256 logins · most recent Oct 25, 2026 |
| Infostealer logs | 334 logins · 253 infected devices · most recent Oct 24, 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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