IDC Frontier Says Customer Data May Be Unrecoverable After Ransomware Attack
The provider has now told 495 companies and municipalities that their data may be gone, and with no recovery timeline and the management console still shut down, customers are left to rebuild from their own backups.
Reporting from 1 source: ASCII.jp.
IDC Frontier published its third report on the unauthorized access incident on October 8, stating that customer data stored in parts of East Japan Region 1 is expected to be difficult to extract or restore. The incident occurred around 3:40 a.m. on October 7. The company confirmed ransomware by a third party as the cause. Affected contract holders total 495, including companies and municipalities.
IDC Frontier's third report on the incident disclosed that virtual servers stopped in four zones of East Japan Region 1 of IDCF Cloud. The company disconnected the affected region from the network and shut down the management console to prevent secondary damage and information leakage. Customers are being instructed to restore data in the affected environment from backups they hold themselves.
Whether data was taken outside and the detailed intrusion route remain under investigation. No unauthorized access has been confirmed in other regions, but the management console stays shut down pending a safety investigation. No recovery timeline has been given.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.