Sumitomo Metal Mining Co., Ltd.
Notice Regarding Unauthorized Access to IT System of Philippine Subsidiary
The servers of the Philippine subsidiary Coral Bay Nickel Corporation were infected with ransomware; however, there is no impact on production, and the effect on financial performance is expected to be minor.
Key Figures
- Infection Date: April 2, 2026
- Scope of Impact: Two servers of Coral Bay Nickel Corporation
- Financial Impact: Minor (as of now)
AI要約
Details and Impact Scope of Unauthorized Access
On April 2, 2026, two servers at the Philippine subsidiary Coral Bay Nickel Corporation (CBNC) were detected to be infected and encrypted by ransomware. The affected servers were immediately isolated, and with the support of external experts, investigations into the impact scope and restoration efforts are underway. There is no impact on the production plant's control systems, and operations continue, with no effect on other group sites.
Impact on Financial Results and Future Measures
At this time, the impact on the fiscal year ending March 2026 financial results is considered minor; however, careful examination including effects on earnings announcements is ongoing. Network disconnection is limited to CBNC and related Philippine subsidiaries, with no impact on sites outside the Philippines. Any new information will be promptly disclosed.
