Keisei Skyliner Booking System Breached in Japan: Up to 3.37 Million Customer Records May Have Been Accessed, Bookings Suspended

Keisei Electric Railway announced on November 13 that the seat reservation system for its Keisei Skyliner airport express trains, which link Narita Airport with central Tokyo, had been illegally accessed by a third party and that customer information from its ticketless service may have been obtained, involving up to about 3.37 million records. The intrusion occurred late at night on November 11, and the company has suspended use of the entire seat reservation system, with no date set for its return.
Keisei said the information that may have been accessed covers five items: user IDs, passwords, names in kana, telephone numbers and email addresses. The company said the passwords were encrypted and cannot be decrypted by a third party. It will contact potentially affected customers individually at their registered email addresses. The method and cause of the intrusion have not been disclosed, and the number of records actually obtained is still being confirmed.
The Skyliner is one of the main ways to travel between Narita Airport and Tokyo. Keisei has suspended the Skyliner ticketless service, Skyliner e-ticket sales and Skyliner ticket sales through travel agencies, saying the step is intended to strengthen system security; tickets remain available at station windows and ticket machines.
(Source: Keisei Electric Railway)
Source: Keisei Electric Railway
Published by GSM · USA (original Chinese edition)
Photo: 图:京成电铁Skyliner所用的AE型列车资料图。照片:MaedaAkihiko 摄,CC BY-SA 4.0,经 Wikimedia Commons。 / Photo: File photo of a Keisei AE series train used for Skyliner services. Photo by MaedaAkihiko, CC BY-SA 4.0, via Wikimedia Commons.
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