Nikke: server intrusion and data leakage
Suspicious administrator logins on August 6 and threat files the next day prompted account changes and investigation. Publication of stolen information was confirmed on August 21. Staff, former staff, applicants and group customers were affected; the total remained under investigation, expected to be in the thousands. My Number was excluded and no secondary harm was confirmed at disclosure.
Disclosed
2025-09-10
Organizations involved
1
Leaked or at risk
Unknown
Downtime
Unknown
Timeline
- Detected 2025-08-06
- Disclosed 2025-09-10
- 35 days
Attack or cause
- Method
- [Intrusion][Credential abuse]
- Impact
- [Data leak]
- Entry point
- Unknown
Data exposed or at risk
Organizations involved
[Breached][Critical]Hyogo, Kobe, ChuoManufacturing
The Japan Wool Textile Co., Ltd.
Sources
- [1][Official]当社システムへの不正アクセスによる個人情報漏えいについてのお詫びとお知らせThe Japan Wool Textile Co., Ltd. · 2025-09-10