[Important] Apology Regarding the Potential Leakage of Guests’ Personal Information
Thank you very much for always choosing THE NELL Ueno Okachimachi.
We have identified a possibility that your personal information may have been leaked externally through “Temairazu,” the Reservation management system used by our Hotel. We sincerely apologize for the significant inconvenience and concern this may cause.
Based on what has been confirmed so far, we have found 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 from us or an Accommodation, please take extra care and note the following:
[Important precautions]
- Do not open any URLs or links included in the message
- Do not enter credit card details or personal information
- Do not reply to suspicious messages
- Do not make payments or transfers as instructed in the message
- If you need to check Reservation details, contact the official support desk of the booked Accommodation or your accommodation reservation website
If you have 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 Co., Ltd.
https://www.temairazu.co.jp/pdf/1206/news-update
Department: Emergency Response Desk
Email: helpdesk@temairazu.com
We again sincerely apologize for causing you significant concern.









