ITOCHU Techno-Solutions: a contractor was hit by ransomware and its file sharing service was accessed

It announced the case. It said a contractor for part of its work was hit by ransomware and the file sharing service for that work was accessed. The files that may have been viewed or taken contained business partners' company information and personal information. It disconnected the PCs affected and reported to the Personal Information Protection Commission. [1] [3]

It published the results. A subcontractor's PC was hit by a brute-force attack, an administrator account and password were stolen, the PC was taken over and ransomware was run. Files on the PC were encrypted and a shared folder in the cloud file sharing service reachable from it was accessed. The subcontractor's PC held no files for its work and no sign of downloads from its file sharing service was found, so it judged there was no risk of a leak. [2]