Matsuya Foods app system breach exposes around 2.38 million records
A breach of Japanese company Matsuya Foods' official app management system exposed 2,377,127 records of ordering service users and around 2,000 membership records from a separate app. The data included names, delivery addresses, telephone numbers, member IDs and points balances, while some membership records also contained dates of birth, email addresses and encrypted passwords. After detecting unauthorised access, the company suspended its official app and related web services and investigated the cause and full extent of the impact.
Key facts
- Affected organisation
- Matsuya Foods
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- 2,377,127 ordering service user records and around 2,000 membership records from a separate app
- Cause / method
- Unauthorised access to the official app management system
- Location
- Japan
If your data was exposed
Exposed dataNameAddressPhone numberUsernameDate of birthEmailPasswordUsage & purchase history
- Change your password, and also change it on any other site where you use the same one. Turn on two-factor authentication if available.
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.
Timeline
- Matsuya Foods detected unauthorised access and suspended its official app and website, halting mobile ordering and bento reservations.
- The exposure of 2,377,127 ordering service user records and membership information from a separate app was confirmed.
- The investigation into the cause of the breach and the full extent of the impact continued.
8 related reports
- 松屋の公式アプリとWebサイトが停止 不正アクセスを検知、モバイルオーダーや弁当予約も使えず（1/2 ページ）
- アプリの管理システムが侵害、会員情報流出 - 松屋
- 松屋、不正アクセスで238万件の個人情報漏えい
- 松屋フーズ、不正アクセスにより公式アプリの利用者の情報約238万件が漏えい
- Matsuya Foods app hit by unauthorized access; over 2.37 million records of personal data leaked, including names, addresses and phone numbers
- Matsuya app management system breach (2,377,127 records plus app members): names, phone numbers and delivery addresses leaked — what members should do
- 無印良品、松屋系統被駭，分別外洩2,726萬、238萬筆會員個資
- デニーズ 旧アプリ利用者の個人情報漏えいか 不正アクセス受け
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.