We would like to report on the details of the information that was the subject of an ongoing investigation regarding a data breach affecting some customers who had made reservations at “ Kansai Airport Washington Hotel” (hereinafter “the facility”), operated by Flat Field Operations Co., Ltd. (Headquarters: Izumiotsu City, Osaka Prefecture; Representative Director: Makoto Hirano; hereinafter “the Company”).
We sincerely and deeply apologize for the significant inconvenience and concern this has caused to our customers and all other parties involved.
1. Background
On Tuesday, January 6, 2026, Overseasan unauthorized access incident occurred on the online reservation site (hereinafter referred to as “the reservation site”) Access & Directions, resulting in unauthorized logins by a third party. As a result, it has been confirmed that the personal information of some customers was leaked. (*1)
*1 January 14, 2026 News
https://washington-hotels.jp/kansai/information/16885/
2. Information That Has Been or May Have Been Compromised
Scope: This affects customers who made reservations at our facility through the aforementioned reservation site between January 4, 2025, and January 6, 2026.
Information Categories: Name, phone number, reservation date, reservation number, and reservation-related information (*2)
We have confirmed that there were no leaks of addresses, email addresses, or credit card information.
*2 Reservation-related information: reservation date, reservation number, check-in date, check-out date, reservation status, Guest Roomsnumber of rooms, number of guests, children’s ages, rates, purpose of stay, device used, room type, length of stay, payment method (choice between on-site payment or advance credit card payment; credit card information is not included), and the message history between the guest and our facility on the reservation website.
3. Our Response
・We have completed contacting all customers affected by the incident described in Section 2 above to provide an explanation and offer our apologies.
・Today, Thursday, April 30, 2026, we completed our final report to the Personal Information Protection Commission.
・Moving forward, we will strengthen our information security measures and thoroughly implement employee training to prevent a recurrence and restore trust.
We would like to once again express our deepest apologies to our customers and all other stakeholders for the significant inconvenience and concern this incident has caused.
4. Contact us,
. For inquiries regarding this matter ( Contact us), please contact the following:
Customer Service
Flat Field Operations Co., Ltd.
Kansai Airport Washington Hotel
Phone: 072-434-3905
Hours: 10:00 a.m. to 6:00 p.m. (weekdays)
Email: contact@kansai-wh.com