
AI-generated summary
The Shinkansen online reservation services ``Express Reservation'' and ``Smart EX'' provided by three JR companies have a total of 22.55 million members.
JR Tokai, JR West, and JR Kyushu announced on the 26th that the personal information of 170,000 members of the Tokaido, Sanyo, and Kyushu Shinkansen reservation services ``Express Reservation'' and ``Smart EX'' was leaked. It is said that there was unauthorized access to the system of ``Ymir Link,'' which was outsourced to provide email distribution services for members.
According to JR Tokai, members' email addresses, member IDs, names in katakana, and membership types were leaked. The campaign targets members to whom three JR companies have distributed travel product promotions and information such as departure time changes due to the Kumamoto Earthquake through Ymir's distribution service "Cuenote FC."
On the 26th, Ymir reported to three companies that their personal information had been viewed or obtained by a third party. The distribution service has reportedly been discontinued.
Express Reservation and Smart EX are services that allow you to reserve reserved seats on the Shinkansen online, and as of the end of September, there were a total of 22.55 million members.

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