Notice of Security Breach, Potential Personal Information Leak, and Fraudulent Messages Leading to Phishing Sites

We recently discovered a compromise to some of our guests’ data as a result of unauthorized access by a malicious third party to our booking information management system provided by Additionally, we were able to confirm that malicious messages were sent to guests directing them to phishing sites.

We also want to be as transparent as possible without compromising our security systems or the steps we’re taking. Below, we share what happened, what information was involved, what we’re doing next.

Timeline of the Incident:

On June 10, 2023, following a report from, we conducted an investigation that revealed unauthorized access to our management system. There is a possibility that personal information of some guests stored in the management system may have been accessed by third parties.

Some guests who made reservations through received messages containing QR codes leading to phishing sites through the chat function of the management system.

If you receive such messages, do not access the provided QR codes or enter any credit card information.

As of 13:20 (this June 10, 2023), no leakage of personal information of guests who made reservations through other booking management systems other than has been confirmed.

Details of the Incident:


There is a possibility that personal information (names, addresses, and/or phone numbers) of guests included in booking information (for stay periods between April 1, 2023 and November 30, 2023) provided through may have been leaked.


Some customers affected by the first incident above received messages containing QR codes leading to phishing sites through the chat function of’s management system.

We are continuously reaching out to customers affected by the second indicent to raise awareness and prevent access to the phishing sites. For inquiries, please contact us:

phone: +81 (0)76-208-3580

Future Measures and Preventive Actions

We are currently collaborating with relevant authorities to investigate the cause and implement necessary measures to prevent any recurrence of such incidents. We will provide updates as soon as further details become available.

Once again, we deeply apologize for the inconvenience and concern caused to you, our guests.

General Manager, Kaname Inn Tatemachi

Last updated: June 10, 2023, 15:00