SystemExec
Data Breach on August 27, 2025
| Data Breach Report | |||
|---|---|---|---|
| Victim | system-exe.co.jp | ||
| Claimed By | Cephalus | ||
| Date Discovered | Aug 27, 2025 | ||
| Description | SystemExec Co., Ltd. is based in Japan, providing IT services, systems integration, software development, consulting, and infrastructure solutions. | ||
| Leak Size | Unknown |
Credential Exposure for system-exe.co.jp
We've indexed 47 @system-exe.co.jp accounts from external breaches, plus 4 credentials for system-exe.co.jp itself.
Last checked Oct 4, 2026
| @system-exe.co.jp addresses from external breaches | |
|---|---|
| Third-party breaches | 36 accounts · across 13 breaches · 34 with a plaintext password · most recent Mar 14, 2024 |
| Combo lists | 35 accounts · most recent Sep 30, 2026 |
| Passwords for system-exe.co.jp accounts | |
|---|---|
| Combo lists | 3 logins · most recent Sep 24, 2026 |
| Infostealer logs | 2 logins · 1 infected devices · most recent Sep 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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