Japan Exchange Group
Data Breach on November 30, 2025
| Data Breach Report | |||
|---|---|---|---|
| Victim | jpx.co.jp | ||
| Claimed By | Root | ||
| Date Discovered | Nov 30, 2025 | ||
| Description | Japan Exchange Group, Inc. is a Japanese financial‑instruments exchange holding company based in Japan, providing infrastructure for securities and derivatives trading, clearing & settlement services, market data and regulation of financial markets. | ||
| Leak Size | Unknown |
Credential Exposure for jpx.co.jp
We've indexed 70 @jpx.co.jp accounts from external breaches, plus 65 credentials for jpx.co.jp itself.
Last checked Oct 11, 2026
| @jpx.co.jp addresses from external breaches | |
|---|---|
| Third-party breaches | 45 accounts · across 16 breaches · 43 with a plaintext password · most recent Feb 26, 2025 |
| Combo lists | 40 accounts · most recent Sep 27, 2026 |
| Passwords for jpx.co.jp accounts | |
|---|---|
| Infostealer logs | 38 logins · 40 infected devices · most recent Sep 9, 2026 |
| Combo lists | 28 logins · most recent Oct 10, 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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