Member information leaks have been disclosed by Skyticket, a flight-booking website, as well as Bookoff Group Holdings and East Japan Railway Company. The incidents involve large volumes of data and may include personal information and expiry dates.
Adventure, which operates the flight-booking website Skyticket, announced that approximately 14.64 million sets of member information had been leaked. The data included names, dates of birth, email addresses, telephone numbers and addresses, among other details, while passport numbers were reportedly not leaked. The company said the incident was caused by unauthorized access to the data storage location between 2 and 4 October.
Bookoff Group Holdings, a major used-book retailer, said its subsidiary's member-management system had been accessed without authorization, indicating that member information may have been leaked. The potentially affected information reportedly includes names, dates of birth, email addresses and addresses, as well as points card numbers and member numbers.
At East Japan Railway Company, approximately 2.06 million members in total of the group's booking website Ekinet and Adult Holiday Club are reportedly affected. In addition to email addresses, dates of birth and credit card expiry dates from Adult Holiday Club may have been leaked. Names, addresses and credit card numbers were reportedly not included.