Montcalm
Data breach claim reported December 06, 2023
| Data Breach Report | ||
|---|---|---|
| Victim | montcalm.com.br | |
| Claimed By | BlackBasta | |
| Date Discovered | Dec 06, 2023 | |
| Description | Montcalm specializes in engineering, construction, and electromechanical solutions for industries such as mining, chemical, oil, and gas. | |
| Leak Size | Unknown |
Breach claims on this page are published by threat actors and haven't been verified by Breachsense.
Credential Exposure for montcalm.com.br
We've indexed 300 @montcalm.com.br accounts from external breaches, plus 207 credentials for montcalm.com.br itself.
Last checked Nov 8, 2026
| @montcalm.com.br addresses from external breaches | |
|---|---|
| Third-party breaches | 234 accounts · across 69 breaches · 200 with a plaintext password · most recent Dec 18, 2025 |
| Combo lists | 184 accounts · most recent Nov 8, 2026 |
| Passwords for montcalm.com.br accounts | |
|---|---|
| Combo lists | 173 logins · most recent Nov 8, 2026 |
| Infostealer logs | 60 logins · 56 infected devices · most recent Nov 4, 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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