> JapanHacked_
[Contained][Severity: Moderate][Intrusion]

M&S Food Service: unauthorized access to the takeout order site of "Miyamoto Munashi" may have leaked up to 1,895 order records (1,030 people)

Unauthorized access to the takeout order site of the Miyamoto Munashi restaurant chain may have leaked up to 1,895 order records of 1,030 customers.

Disclosed

2026-08-03

Organizations involved

1

Leaked or at risk

1.9K

1,895

Downtime

Unknown

What happened

  1. It confirmed unauthorized access to the takeout order site by a third party, suspended the site and restricted access. [1]

  2. It announced the unauthorized access. Names, readings, phone numbers, email addresses and order details of up to 1,895 records (1,030 people) who ordered from March to July 2026 may have leaked. It has reported to the Personal Information Protection Commission and found no misuse. [1] [2]

Timeline

  1. Detected 2026-07-29
  2. Disclosed 2026-08-03
  3. 5 days

Attack or cause

Method
[Intrusion]
Impact
[Data leak]
Entry point
Unknown

Data exposed or at risk

[Name][E-mail address][Phone number][Purchase history]

Organizations involved

  • [Breached][Moderate]Osaka, Osaka, Chuo WardAccommodation, food and drink1,895 leaked

    M&S Food Service Co., Ltd.

    Registration data and order details on the takeout order site may have leaked. Card data was not affected because an outside payment service handles it.

Open in organization search

Sources

  1. [1][Official]当社「宮本むなしお持ち帰り注文サイト」に対する不正アクセスに関するご報告とお詫びM&S Food Service Co., Ltd. · 2026-08-03
  2. [2][News]「宮本むなしお持ち帰り注文サイト」に不正アクセス、最大1,895件の注文情報が漏えいした可能性ScanNetSecurity · 2026-08-28 08:05