EDION: online-shop server logs breached; data on 9,554 order customers and others may have leaked
Exposed logs may contain data on 9,554 order customers and a separate 4,131-person cohort. Some include card expiry dates; full card numbers and passwords are excluded.
Disclosed
2026-11-06
Organizations involved
1
Leaked or at risk
9.6K
9,554
Downtime
Unknown
Impact and response
At about 18:30 on 5 November EDION discovered unauthorized access exploiting a vulnerability in the server area holding EC logs and possible data exposure. No unauthorized access to or leak from the customer database itself has been confirmed. It blocked the route and fixed the issue, and the shop continues normal operation following external assessment. [1]
Potentially affected cohorts are 4,131 people with profile data such as names, emails, phones, birth dates, gender, addresses and customer IDs, and 9,554 people with order data such as names, customer IDs, order numbers and amounts. Combining logs can sometimes reveal emails, phones, postal/area data, card expiry dates and EDION prepaid gift-card numbers. The cohorts overlap and are not added together. Full credit-card numbers and login passwords are excluded. [1]
Timeline
- Detected 2026-11-05
- Disclosed 2026-11-06
- 1 days
Attack or cause
- Method
- [Web app exploit]
- Impact
- [Data leak]
- Entry point
- Web app
Data exposed or at risk
Services hit
Organizations involved
[Breached][Major]Hiroshima, Hiroshima, Naka-kuWholesale and retail trade9,554 leaked
EDION CorporationThe 9,554-person order cohort and 4,131-person profile cohort overlap and are not added together. Full payment-card numbers and login passwords are excluded.
Sources
- [1][Official]当社ECサイトへの不正アクセスによる個人情報漏洩の可能性に関するお詫びとお知らせEDION · 2026-11-06