Japan·Retail·Announced by the organization or a regulator
MrMax data breach (Oct 2026)
What happened
MrMax reported that unauthorized access to its app and online store servers occurred through software abuse; member IDs, names, email addresses, and phone numbers were exposed. Addresses, birth dates, card information, passwords, and purchase history were not leaked.
This page summarizes and translates our record written in Japanese. Counts and dates come from that record unchanged. Read the original record →
Facts on record
- Country
- Japan
- Industry
- Retail
- Announced
- Oct 6, 2026
- Affected
- 1.7 million people
- Data exposed
- Member IDs, email addresses, phone numbers, names
- Status
- Announced by the organization or a regulator
- Compensation and penalties
- None on record
Sources
- ミスターマックス不正アクセスによる情報流出に関するお詫びとお知らせ