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Japanese cloud provider IDC Frontier hit by ransomware attack
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Fusion42 · 11 October 2026 · Fusion42 review
Japanese cloud provider IDC Frontier suffered a ransomware attack on October 7, 2026, causing outage in its East Japan Region 1 data center cluster and impacting about 495 companies and local governments. The attack encrypted 225 databases, totaling 3.6 petabytes of data, and affected numerous virtual machines, leading to forced shutdowns to contain the threat.
This Wire brief sits within Fusion42's coverage of Cloud Infrastructure.
◆ ◆ The Wire takeaway
You face a sudden example of cloud service disruption in Japan where ransomware hit a major SoftBank subsidiary, exposing how quickly a data centre outage can cascade across hundreds of clients. Rethink your incident response and client communication plans urgently to manage knock-on damage in shared cloud environments.
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1 source · 11 Oct 2026
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