[Important] Apology and Notice Regarding Unauthorized Access to Reservation Information
As of October 15, 2026
Dear Valued Guest,
感谢您预订Southwest Grand Hotel。
We regret to inform you that it has come to our attention that an unauthorized third party gained access to an external system used by our hotel for reservation management, and that information relating to your reservation may have been viewed or obtained. We sincerely apologize for the considerable concern and inconvenience this matter may cause you.
1. Summary of the Incident
On September 21, 2026, an unauthorized third party accessed “TEMAIRAZU,” the reservation management system used by our hotel and provided by Temairazu Co., Ltd. We are unable to rule out the possibility that some of the reservation information stored in the system was viewed or obtained externally.
Reservations that may be affected: Reservations made on or before September 21, 2026, with a stay date on or after September 21, 2026.
2. Information That May Have Been Viewed or Obtained
Reservation information, including your name, address, telephone number, email address, stay dates, reservation number, accommodation charges, and payment method.
Please note that credit card information is not handled by this system and is therefore not included.
3. Cause
The incident was caused by a security vulnerability in a function of a service previously provided by Temairazu Co., Ltd. The company completed corrective measures for the affected component on September 26, 2026, and is continuing its investigation in cooperation with external specialist organizations.
4. Suspicious Messages Reported
In connection with this incident, we have confirmed instances of suspicious messages (sent via WhatsApp, email, SMS, and other channels) that impersonate our hotel or booking sites and request that recipients enter credit card information or make payments. Recently, we have also identified emails purporting to relate to “online check-in” or an “accommodation itinerary.”
5. Our Requests to Guests
We respectfully ask that you:
・Refrain from opening any URLs or links contained in suspicious messages impersonating our hotel or booking sites.
・Refrain from entering credit card information or personal information in response to such messages.
・Refrain from replying to such messages.
・Refrain from making any payment or money transfer as instructed in such messages.
Should you have entered your card information on a suspicious website, please contact your credit card company and financial institution.
6. Actions Taken by Our Hotel
・We have requested that Temairazu Co., Ltd. and the other related reservation system providers identify the cause and investigate measures to prevent recurrence.
・We have issued a cautionary notice on our hotel website.
7. Inquiries
※Please be aware that, even where the sender’s email address appears to belong to our hotel, it may have been spoofed.
Our property’s official email address is as below.
Southwest Grand Hotel
reception@southwestgrand.com
[Inquiries Regarding the System Involved in This Incident]
Temairazu Co., Ltd. Emergency Help Desk
helpdesk@temairazu.com
Once again, we extend our deepest apologies for the considerable concern and inconvenience this matter has caused.
Sincerely,
Southwest Grand Hotel
由 Plan･Do･See Ryukyu Inc. 运营
【重要】 关于未经授权访问预约信息的道歉和通知
2026年10月15日
尊敬的客户:
感谢您一直以来选择Southwest Grand Hotel。
本次已经查明，本酒店用于预订管理的外部系统遭到第三方非法访问，该系统有可能浏览、获取客人预订相关信息。给您带来了很大的担心和不便，我们由衷地表示歉意。
1.概述
2026年9月21日，第三方非法访问了本酒店用于预订管理的“TEMAIRAZU”系统 (提供商:无需人工，有限公司) 。在这种情况下，不能排除保存在该系统中的预订信息的一部分可能是从外部浏览和获取的。
可能的预订:预订日期截至2026年9月21日且住宿日期不晚于2026年9月21日
2.可能已查看或获取的信息
包含姓名、住址、电话号码、邮箱地址、住宿日程、预约号码、住宿费用、支付方法等的预约信息
本系统不处理信用卡信息，不包含信用卡信息。
3.原因
这是由于公司过去提供的一些服务功能存在安全问题。2026年9月26日，公司已完成了对事故原因的对策，并将继续与外部专业机构合作进行调查。
4.关于二次受害
与本案相关，已经发现有伪装成本酒店或预订网站的可疑信息(WhatsApp、邮件、SMS等)被发送，要求输入信用卡信息或进行支付的事例。最近，要求“在线办理登机手续”，“住宿时间表”等的句子的电子邮件也被确认。
5.对顾客的要求
·请勿打开伪装成本酒店或预订网站的可疑信息的URL或链接
・请勿在伪装成本酒店或预订网站的可疑信息中输入信用卡信息或个人信息
・请勿回复伪装成本酒店或预订网站的可疑信息
・请勿按照该信息的指示进行支付或汇款
如果您在可疑网站上输入了信用卡信息，请立即与信用卡公司和金融机构联系。
6.本酒店的对应
·毫不费力地委托公司及相关预约系统各公司进行调查以防止再次发生，并查明原因
・本酒店网站上的提醒注意
7.联系我们
※即使发件人的电子邮件地址显示为来自本酒店，也有可能是伪造的，因此请不要打开可疑电子邮件中的URL或链接。
Southwest Grand Hotel
reception@southwestgrand.com
【本件の原因となったシステムに関するお問い合わせ】
手間いらず株式会社 緊急ヘルプデスク
helpdesk@temairazu.com
再次对给您带来的担忧和不便深表歉意。
Southwest Grand Hotel
运营方：Plan･Do･See琉球株式会社