「ふるさとチョイス」を運営するトラストバンクは10月20日、第三者の不正アクセスにより、会員の氏名や住所など個人情報445万4097件が外部流出したと発表した。関連サービスは一時停止中で、再開時期は未定。
AI-generated summary
トラストバンクが運営するふるさと納税サイト「ふるさとチョイス」で第三者による不正アクセスが発生し、大量の個人情報が流出した。
ふるさと納税サイト「ふるさとチョイス」を運営するトラストバンクは10月20日、第三者による不正アクセスを受け、会員の氏名や住所、寄附金控除額などの個人情報445万4097件が外部に流出したと発表した。
流出したのは会員の氏名、住所、メールアドレス、電話番号、ハッシュ化されたパスワードと、寄附控除試算額。
ふるさとチョイスには、会員が年収や家族構成などを入力すると控除上限額の目安を試算する機能があり、結果をマイページに保存できた。
同社は19日に通常と異なるアクセス傾向を把握。調べたところ、17日に不正アクセスがあり、会員の個人情報が外部に流出したことが判明。19日午後3時50分にふるさとチョイス関連サービスを停止した。再開時期は未定で、安全性の確認状況を踏まえて決める。
流出件数や項目は現時点で確認できたもので、今後の調査により変動する可能性がある。外部の専門家の協力のもと、事実関係と影響範囲を調べている。今後、セキュリティ対策、監視体制、情報管理体制を強化する。
20日に個人情報保護委員会への報告を完了した。21日に所轄警察署へ被害を申告する予定だ。
AI outlook — possibilities, not facts
所轄警察署への被害申告
Very likely · Within days

An investigation by a subsidiary of GMO revealed that the Chinese penetration testing tool ``ARTEX'' may have been misused to gain unauthorized access to Japanese companies. Damage has been confirmed at multiple companies in the financial and logistics industries, and information leaks have also been made public.
![Hankyu Hanshin, Nifty, Furusato Choice [Unauthorized access discovered on the 19th]](/api/img?u=https%3A%2F%2Fimgopt.asahi.com%2Fogp%2FAS20261019004511_comm.jpg&w=320&q=72&f=webp)
On the 19th, it was announced that unauthorized access was discovered at seven organizations: H2O Retailing, Nifty, Trust Bank, Joshin, Ashikaga City, Ymir Link, and JETRO, and that personal information of customers and users may have been leaked. Information that may be leaked includes names, email addresses, addresses, phone numbers, dates of birth, credit card information, etc. Although no unauthorized use has been confirmed at this time, measures have been taken such as creating a contact point and temporarily suspending the service.
H2O Retailing announced that the reservation site operated by its subsidiary Hankyu Hanshin Department Store was accessed illegally, and some of the approximately 1.26 million pieces of personal information related to the common member ID ``H2O ID'' were leaked.
![[ITmedia PC USER] General availability of “Gemini 4 Argon” begins / Meta announces “Muse Wonder” series](/api/img?u=https%3A%2F%2Fimage.itmedia.co.jp%2Fpcuser%2Farticles%2F2610%2F18%2Fcover_news005.jpg&w=320&q=72&f=webp)
Google starts general availability of AI model "Gemini 4 Argon". It has received high praise for its performance in finance, coding, etc. Meanwhile, Meta announced a new model for individuals and business agents, ``Muse Wonder,'' and a higher-end version, ``Muse Wonder Full.''
![[ITmedia Mobile] Ministry of Internal Affairs and Communications discusses residual value rate of device purchase program ``via email'' - Will smartphones purchased through carriers become even more ``difficult to buy''?](/api/img?u=https%3A%2F%2Fimage.itmedia.co.jp%2Fimages%2Flogo%2F1200x630_500x500_mobile.gif&w=320&q=72&f=webp)
A specialized committee of the Ministry of Internal Affairs and Communications will consider setting residual value rates for device purchase programs through email deliberations. The author criticizes the current situation where the opaqueness of the debate and the current discount regulations are hindering the spread of the latest smartphones, and recommends a return to free competition.
![[ITmedia Mobile] Apple announces smart display "HomeView", but release date in Japan is unknown. Will it be released at all?](/api/img?u=https%3A%2F%2Fimage.itmedia.co.jp%2Fmobile%2Farticles%2F2610%2F17%2Fcover_news018.jpg&w=320&q=72&f=webp)
The number one article in ITmedia Mobile's weekly access ranking was an article about Apple's first smart display, HomeView. Equipped with Siri AI, it will be pre-sold in the United States and other countries, but the release date in Japan has not been determined.