Montreal Electrical Services Commission (CSEM)
Data Breach on August 10, 2023
| Data Breach Report | ||
|---|---|---|
| Victim | csem.qc.ca | |
| Claimed By | LockBit | |
| Date Discovered | Aug 10, 2023 | |
| Description | Montreal Electrical Services Commission (CSEM) provides a reliable, safe and sustainable infrastructure network, both underground and above ground. | |
| Leak Size |
Credential Exposure for csem.qc.ca
We've indexed 24 @csem.qc.ca accounts from external breaches, plus 12 credentials for csem.qc.ca itself.
Last checked Sep 20, 2026
| @csem.qc.ca addresses from external breaches | |
|---|---|
| Third-party breaches | 22 accounts · across 21 breaches · 20 with a plaintext password · most recent Apr 30, 2024 |
| Combo lists | 12 accounts · most recent Aug 30, 2026 |
| Passwords for csem.qc.ca accounts | |
|---|---|
| Combo lists | 12 logins · most recent Sep 12, 2026 |
| Infostealer logs | 7 logins · 2 infected devices · most recent Mar 20, 2024 |
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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