MasterCorp
Data Breach on April 28, 2023
| Data Breach Report | ||
|---|---|---|
| Victim | mastercorp.com | |
| Threat Actor | BlackBasta | |
| Date Discovered | Apr 28, 2023 | |
| Description | MasterCorp provides housekeeping, floor care, engineering, and laundry services. | |
| Leak Size | Unknown |
Credential Exposure for mastercorp.com
We've indexed 45 @mastercorp.com accounts from external breaches, plus 1 credentials for mastercorp.com itself.
Last checked Aug 16, 2026
| @mastercorp.com addresses from external breaches | |
|---|---|
| Third-party breaches | 42 accounts · across 31 breaches · 39 with a plaintext password · most recent Jan 22, 2025 |
| Combo lists | 8 accounts · most recent Jul 30, 2026 |
| Passwords for mastercorp.com accounts | |
|---|---|
| Combo lists | 1 logins |
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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