MAT 4Site Engineers
Data Breach on December 22, 2025
| Data Breach Report | |||
|---|---|---|---|
| Victim | mat4site.com | ||
| Threat Actor | Akira | ||
| Date Discovered | Dec 22, 2025 | ||
| Description | MAT 4Site Engineers Ltd. is a building systems engineering and consulting firm based in Canada, providing mechanical, electrical and energy‑focused engineering design, commissioning and project management services to commercial and institutional facilities to improve and optimize building performance. | ||
| Leak Size | 90GB |
Credential Exposure for mat4site.com
We've indexed 22 @mat4site.com accounts from external breaches, plus 1 credentials for mat4site.com itself.
Last checked Aug 16, 2026
| @mat4site.com addresses from external breaches | |
|---|---|
| Combo lists | 17 accounts · most recent Aug 6, 2026 |
| Third-party breaches | 7 accounts · across 14 breaches · 6 with a plaintext password · most recent Feb 8, 2021 |
| Passwords for mat4site.com accounts | |
|---|---|
| Combo lists | 1 logins · most recent Aug 8, 2025 |
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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