According to Security NEXT, Matsuya Foods discovered on October 28, 2026, that its official app management system was breached by a third party, resulting in a leak of member information [1]. The breach affected 2,377,127 records across Matsuben Net reservation, mobile ordering, and delivery services, including member IDs, delivery addresses, names, phone numbers, and loyalty points [1]. In addition, 2,000 registered app member records were confirmed leaked—potentially rising to up to 3,000 records—and the company has suspended relevant app and website services while investigating [1].
This event has not been officially confirmed. Content is based on media or third-party reports.
HighMonitoringMedia reported
Matsuya Foods App Management System Breached, Exposing ~2.37 Million Ordering Member Records
1 min read
- Disclosed
- Oct 30, 2026
- Published
- Nov 10, 2026
- Last updated
- Nov 7, 2026
- CVSS basis
- Our assessment
- Attack vector
- Actor type
- Motivation
On this page
30-second summary
What happened
Who is affected
Industries mainly affected: Hospitality & food service
What to do nowOur advice
In addition, 2,000 registered app member records were confirmed leaked—potentially rising to up to 3,000 records—and the company has suspended relevant app and website services while investigating [1].
Timeline
- Security NEXT publishes report (date only; timestamp is a placeholder)[1]
Technical details
Source-Verified Summary
Matsuya Foods discovered on October 28, 2026, that its official app management system was breached by a third party, resulting in a leak of member information [1].
The breach affected 2,377,127 records across Matsuben Net reservation, mobile ordering, and delivery services, including member IDs, delivery addresses, names, phone numbers, and loyalty points [1].
In addition, 2,000 registered app member records were confirmed leaked—potentially rising to up to 3,000 records—and the company has suspended relevant app and website services while investigating [1].
References
Media1
- [1]
“松屋フーズは、第三者による侵害を受け、会員情報が流出したことを明らかにした。”
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