> JapanHacked_
[Contained][Severity: Critical][Web app exploit]

murauchi.com: unauthorized access

Long-running online retailer murauchi.com had a system failure early on 15 July, and traces of unauthorized access were found during recovery on 16 July. Attackers used a vulnerability in part of its web system as a starting point and accessed several systems. Its second report on 15 September said the forensic investigation confirmed the leak of 7,716,811 records with names, addresses, phone numbers, emails, birth dates and genders. Card data and passwords were not included.

Disclosed

2026-07-24

Organizations involved

1

Leaked or at risk

7.7M

7,716,811

Downtime

Unknown

Timeline

  1. Started 2026-07-15
  2. Detected 2026-07-16
  3. Disclosed 2026-07-24
  4. 9 days

Organizations involved

Open in organization search

Sources

  1. [1][News]ムラウチドットコム、不正アクセスにより約771万件の個人情報漏えいINTERNET Watch · 2026-09-16
  2. [2][News]ムラウチドットコムから顧客情報約771万件の漏えい 氏名や住所、電話番号などITmedia NEWS · 2026-09-17