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Preferred Travel Group (PTG), the company to which Keio Plaza Hotel outsources the operation of its room reservation system, which is mainly used by Keio Plaza Hotel as a direct reservation tool in foreign languages, has discovered a possible leak of personal information due to unauthorized access from an external source, according to a report from PTG. PTG has reported to us that it has discovered a possible leak of personal information due to unauthorized access from an external source.
We sincerely apologize for the concern and inconvenience this may cause to our customers.
The potentially compromised personal information consists of 1,210 reservations (978 excluding duplicates), which were made primarily in foreign languages.
At this time, we have not confirmed any cases of misuse of the potentially leaked information, but we would like to caution you against identity theft, fraud, phishing attacks, or any other fraudulent activities.
The reservation system has already undergone security enhancements by PTG and can be used without any concerns.
[Subject personal information]
Reservations: Reservations made via our foreign language website, PTG brand website, and reservation systems operated by international travel agencies,etc.
Period: Personal information stored in PTG's and our lodging reservation system from October 16, 2024 to January 6, 2025
Information: Name, address, contact information (e-mail address, telephone number), reservation details (rates, dates), last 4 digits of debit/credit card number, name of cardholder, etc.
This matter has been reported to the Personal Information Protection Committee.
PTG has been strongly requested to take measures to prevent a recurrence of this incident, and we will also make every effort to ensure that our customers can use our services safely and securely.
For inquiries regarding this matter.
PTG is currently preparing a call center for this matter.
Until the call center is ready, please use the form below to contact us regarding this matter. Please note that it may take some time for us to reply.
We apologize for any inconvenience this may cause and thank you for your understanding.
For inquiries regarding this matter, please contact PTG has informed us that the call center is ready.
We apologize for any inconvenience this may cause you and thank you for your understanding.
For inquiries, please contact us at the following address:
■ Service Commencement:Friday, May 9, 2025, 9:00a.m.
■Line type and business hours:
①From Japan 00663 386 8191
May 9 (Fri.) 9:00a.m. to May 22 (Thu.) 9:00a.m. 24-hour service
②From overseas +1855 260 7645 ／ +1888 408 2761
May 9 (Fri.) 9:00a.m. to May 22 (Thu.) 9:00a.m.
Monday through Friday 9:00a.m. to 5:00 p.m. (Japan time)
