IDC Frontier has isolated and stopped East Japan Region 1 after confirming a ransomware attack, affecting 495 corporate and municipal customers while the intrusion path, data impact and recovery timetable remain unpublished.
What changed
IDC Frontier confirmed that ransomware caused an ongoing outage in IDCF Cloud East Japan Region 1. The provider isolated and stopped the affected systems, said 495 companies and local governments were affected, and restricted management-console access elsewhere while it assessed safety.
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Security.io editorial scores from 0 to 100. Exposure considers affected-customer scope and shared-provider dependency; urgency considers containment and recovery uncertainty; business consequence considers service disruption and continuity impact. These are editorial decision-support scores, not externally reported metrics. Exposure: 88. Urgency: 96. Business consequence: 93. Focus the chart and use the up and down arrow keys for detail. Source: Security.io editorial scoring based on verified exposure scope, remediation urgency and potential operational consequence in the selected sources.