Shopping
BOOKOFF Official App
BOOKOFF Official App (run by BOOKOFF Corporation) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2026-10-09.
About the service
- Website
- https://support-app.bookoff.co.jp/
- Run by
- Category
- Shopping
- For
- People
Incident history
Disclosed 2026-10-09Updated 2026-11-06Kanagawa[Contained][Severity: Critical][Breached][Critical]
BOOKOFF: 6,427,735 member-number records leaked, affecting 6,383,279 people[Intrusion][Web app exploit][Data leak]Leaked 6.4MOrganizations 1
Other incidents of the operator (1)
Disclosed 2020-03-04Updated 2020-03-05 08:00Kanagawa[Resolved][Severity: Moderate]
BOOKOFF: member email list mistakenly attached to BOOKOFF Online mail[Misdelivery][Data leak]Leaked 1.3KOrganizations 1