Heywood Healthcare
Data Breach on November 19, 2025
| Data Breach Report | |||
|---|---|---|---|
| Victim | heywood.org | ||
| Threat Actor | Sinobi | ||
| Date Discovered | Nov 19, 2025 | ||
| Description | Heywood Healthcare is an independent, community-owned healthcare system based in the USA (Massachusetts). | ||
| Leak Size | 550GB |
Credential Exposure for heywood.org
We've indexed 196 @heywood.org accounts from external breaches, plus 19 credentials for heywood.org itself.
Last checked Aug 16, 2026
| @heywood.org addresses from external breaches | |
|---|---|
| Third-party breaches | 195 accounts · across 58 breaches · 157 with a plaintext password · most recent Aug 25, 2024 |
| Combo lists | 37 accounts · most recent Aug 7, 2026 |
| Passwords for heywood.org accounts | |
|---|---|
| Combo lists | 18 logins · most recent Aug 7, 2026 |
| Infostealer logs | 2 logins · 2 infected devices · most recent Jan 1, 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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