[Important] Apology and Notice from Temairazu, Inc. Regarding the Potential Leakage of Customers’ Personal Information
Dear Valued Guests
[Important] Notice from Temairazu, Inc.: Apology and Security Advisory Regarding a Possible Leak of Personal Information
Thank you for choosing Hotel Sunoak Kashiwanoha.
We have confirmed that, within “Temairazu,” the reservation management system used by our Hotel, there may have been an external leak of guests’ personal information. This was not due to unauthorized access to the Hotel; rather, unauthorized access to Temairazu, Inc. (the provider of the reservation management system) has been confirmed.
We sincerely apologize for the significant inconvenience and concern this may cause.
Based on what has been confirmed so far, we have identified cases in which suspicious messages were sent to Reservers for some Reservations that meet all of the following conditions:
- Reservation date: Reservations completed on or before September 21, 2026
- Stay date: Reservations with stay dates on or after September 21, 2026
If you receive any suspicious contact (email, SMS, etc.) claiming to be Mori Eight Co., Ltd. (the Hotel operating company) or an Accommodation, please exercise extreme caution.
The confirmation emails we send at the time a Reservation is completed and on the day before arrival are sent only from the domain “@sunoak.net.” We will not send messages from any other email address.
[Please Note]
- Do not open any URLs or links included in such messages
- Do not enter credit card details or personal information
- Do not reply to suspicious messages
- Do not make payments or transfers as instructed by such messages
- If you need to check your Reservation details, contact the official support desk of your booked Accommodation or your booking website
If you entered credit card information on a suspicious website, please contact your credit card company immediately. Please note that the system involved in this incident does not handle or store credit card information.
For inquiries regarding this matter, please contact:
Temairazu, Inc.
Department: Emergency Response Desk
Email: helpdesk@temairazu.com
We again sincerely apologize for causing you great concern.















