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Cyber Attack & Data Breach · idcf.jp

Ransomware Attack Affects IDC Frontier’s IDCF Cloud East Japan Region

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Summary

IDC Frontier reported a ransomware attack affecting IDCF Cloud’s East Japan Region 1 and 495 companies and local government organizations. The company isolated the network and shut down systems to contain the incident.

Key points

  • IDC Frontier reported a ransomware attack on its IDCF Cloud service.
  • The incident occurred on October 7, 2026, at 3:40 a.m.
  • IDCF Cloud’s East Japan Region 1 was affected.
  • The incident impacted 495 companies and local government organizations.
  • IDC Frontier isolated the network and shut down systems to contain the attack.

Article Details

Victim Organization
IDC Frontier
Victim Domain
idcf.jp
Incident Type
Ransomware attack
Incident Date
2026-10-07
Disclosure Date
2026-10-07
Operational Impact
East Japan Region 1 of IDCF Cloud was affected, impacting 495 companies and local government organizations. IDC Frontier isolated the network and shut down systems to contain the incident.
Claim Status
confirmed

Vendors

IDC FrontierIDC Frontier announced a ransomware attack targeting its IDCF Cloud service, affecting the East Japan Region 1 and impacting 495 companies and local government organizations.

Products

IDCF CloudIDC Frontier announced a ransomware attack targeting its IDCF Cloud service, affecting the East Japan Region 1 and impacting 495 companies and local government organizations.

Countries

JapanIDC Frontier announced a ransomware attack targeting its IDCF Cloud service, affecting the East Japan Region 1 and impacting 495 companies and local government organizations.

Industries

Cloud ComputingGovernmentIDC Frontier announced a ransomware attack targeting its IDCF Cloud service, affecting the East Japan Region 1 and impacting 495 companies and local government organizations.

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