Kumagai Gumi
Data breach claim reported March 04, 2024
| Data Breach Report | ||
|---|---|---|
| Victim | kumagaigumi.co.jp | |
| Claimed By | ALPHV | |
| Date Discovered | Mar 04, 2024 | |
| Description | Kumagai Gumi Co., Ltd. is a Japanese construction company founded in Fukui, Fukui Prefecture, Japan. | |
| Leak Size | Unknown |
Breach claims on this page are published by threat actors and haven't been verified by Breachsense.
Credential Exposure for kumagaigumi.co.jp
We've indexed 471 @kumagaigumi.co.jp accounts from external breaches.
Last checked Nov 8, 2026
| @kumagaigumi.co.jp addresses from external breaches | |
|---|---|
| Third-party breaches | 364 accounts · across 71 breaches · 319 with a plaintext password · most recent Feb 8, 2021 |
| Combo lists | 187 accounts · most recent Nov 5, 2026 |
None of this is necessarily connected to the ransomware attack above.
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