[ITmedia News] JR Kyushu, up to 1.3 million member email addresses leaked? Impact of IDCF unauthorized access

JR Kyushu announced on October 9 that up to approximately 1.3 million email addresses of "JR Kyushu Web members" may have been leaked due to unauthorized access that occurred at IDC Frontier. Some external services for distributing e-mails to members are no longer available, making it impossible to distribute e-mail newsletters.

In addition to email addresses, email log data may have been viewed or obtained. There is no possibility of the subject line or body of the email newsletter being leaked. There is no possibility that personal information such as names, addresses, phone numbers, and credit card numbers was also leaked.

IDC Frontier announced on the 7th that a portion of its corporate cloud service "IDCF Cloud" was attacked by ransomware and a failure occurred. 495 companies and local governments have been affected.

On the 9th, JR East also announced that up to 2.06 million e-mail addresses of Ekinet and other members may have been leaked due to unauthorized access to IDC Frontier. Railway infrastructure companies are also being affected.