William S. Hein
Data Breach on May 22, 2024
| Data Breach Report | |||
|---|---|---|---|
| Victim | heinonline.org | ||
| Threat Actor | INC_RANSOM | ||
| Date Discovered | May 22, 2024 | ||
| Description | William S. Hein & Co., Inc. is a leading, family-run publishing company that has been serving the worldwide library community since the 1920s. | ||
| Leak Size | 500GB |
Credential Exposure for heinonline.org
We've indexed 15 @heinonline.org accounts from external breaches, plus 289 credentials for heinonline.org itself.
Last checked Aug 23, 2026
| @heinonline.org addresses from external breaches | |
|---|---|
| Combo lists | 15 accounts · most recent Aug 17, 2026 |
| Passwords for heinonline.org accounts | |
|---|---|
| Combo lists | 235 logins · most recent Aug 21, 2026 |
| Infostealer logs | 105 logins · 125 infected devices · most recent Aug 7, 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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