Sumitomo Metal Mining Co.,Ltd. [5713.T]
TOKYO, May 08 (Pulse News Wire) – Sumitomo Metal Mining CO.,LTD. (5713.T) reported today that its Philippine nickel refining subsidiary Coral Bay Nickel Corporation (CBNC) suffered a ransomware attack due to unauthorized access on April 2.
Following detection of encrypted servers on April 8, immediate isolation measures were implemented. Subsequent investigations confirmed no personal or technical data leaks, and operations continued without disruption. While communication networks were temporarily disrupted at CBNC and two other subsidiaries, services have since been restored.
The incident had no impact on the group's fiscal 2026 March quarter performance, and earnings release remains scheduled for May 11. Minimal effects on the upcoming fiscal year are anticipated. In a statement, President Shunichi Matsumoto apologized for any concern caused by the incident and emphasized ongoing security enhancements across the company group.
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