Nippon Ceramic: ransomware and data leakage
An April 5 ransomware attack was detected on April 7. June's report put up to about 37,600 people and 1,500 companies at risk. September's update confirmed leakage concerning about 2,850 people and 900 companies, with another 35,650 people and 950 companies potentially exposed. Compromised systems were retired and operations continued in isolated environments.
Disclosed
2025-04-08
Organizations involved
1500
Leaked or at risk
37.6K
37,600
Downtime
Unknown
Timeline
- Started 2025-04-05
- Detected 2025-04-07
- Disclosed 2025-04-08
- 3 days
Attack or cause
- Method
- [Ransomware]
- Impact
- [Data leak][Service outage]
- Entry point
- Unknown
- Affected, as stated
- 1,500
Data exposed or at risk
Organizations involved
[Breached][Critical]Tottori, TottoriManufacturing37,600 leaked
Nippon Ceramic Co., Ltd.
Sources
- [1][Official]当社サーバーに対する不正アクセスに関するお知らせNippon Ceramic Co., Ltd. · 2025-04-08
- [2][Official]当社サーバーに対する不正アクセスに関するお知らせ(開示事項の経過)Nippon Ceramic Co., Ltd. · 2025-06-27
- [3][Official]当社サーバーに対する不正アクセスに関するお知らせ(開示事項の経過)Nippon Ceramic Co., Ltd. · 2025-09-26