A ransomware incident has disrupted IDC Frontier Inc., a SoftBank cloud-services subsidiary, with outages reported on 7 October affecting 495 corporate and local government customers. IDC Frontier stated it is still assessing the extent of the damage and whether any personal information was exposed.
The company’s statement, relayed via The Asahi Shimbun, confirms an ongoing investigation into the scale of the incident and the potential data breach, but concrete details on data exfiltration or specific affected systems were not disclosed.
The disruption has also impacted the logistics operations of Nissui Logistics Corp., a subsidiary of seafood giant Nissui, which relies on an IDC Frontier data centre. Nissui reported on 8 October that roughly 1,200 business partners—ranging from retailers and restaurant operators to food wholesalers and producers—have been affected by the disruption. The report does not specify the nature of the data involved or potential remediation timelines.
At present, the available information indicates a ransomware attack with significant operational impact across cloud services and connected supply chains, but per the sources cited, confirmed exploitation details and the extent of personal data involvement remain unverified. Further updates from IDC Frontier or authoritative outlets would be required to determine precise impacts and recommended mitigations.