Temairazu announced the status of its investigation and its response regarding unauthorized access to “TEMAIRAZU,” its reservation management system for accommodation facilities.
It said that accommodation reservation information for up to approximately 4.45 million people may have been viewed or obtained by a third party. The affected information includes reservation details such as the guest’s name, telephone number, email address and other contact information, the name of the accommodation facility, check-in date, check-out date, and accommodation charges. The company does not hold credit card information.
On September 21, the company was contacted by several accommodation facilities using the system, which reported that suspicious messages had been sent to reservation holders. Temairazu then began an internal investigation. It subsequently confirmed unauthorized access by a third party and took measures to prevent further damage. The company identified the source of the issue and implemented countermeasures, access controls, and enhanced monitoring. Measures addressing the cause identified to date have been completed.
Temairazu has commissioned an external security specialist organization to investigate and analyze the incident in order to objectively verify the cause and scope of the impact. The company also said it has reported the matter to Japan’s Personal Information Protection Commission and consulted the police.
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