SOFT99: unauthorized access to its official online shop; data on up to 136,968 people may be exposed
A file uploaded through the inquiry form let an attacker read server files. Names, addresses and last card digits of up to 136,968 people may be exposed; the shop is suspended.
Disclosed
2026-11-10
Organizations involved
1
Leaked or at risk
137K
136,968
Downtime
Unknown
People affected or at risk
137K
136,968
How the attacker got in
On 5 November the shop's contractor reported suspicious activity. Its investigation found that an outsider uploaded a program file through the image attachment of the inquiry form, used it to plant a file that accepts remote commands, and with the site program's privileges explored the server and read configuration files. [1]
The shop was taken offline, the access route cut and access restrictions tightened. The case was reported to the Personal Information Protection Commission on 9 November; outside experts will investigate before preventive measures are set. [1]
Data that may be exposed
For up to 136,968 people who registered or bought by 5 November: name, address, email, phone, birth date, gender, purchase and delivery details, and the last four card digits, expiry date and cardholder name. Who is affected and how many are still being confirmed; 136,968 is the upper bound. Full card numbers are not listed. [1]
Timeline
- Detected 2026-11-05
- Disclosed 2026-11-10
- 5 days
Attack or cause
- Method
- [Web app exploit]
- Impact
- [Data leak][Service outage]
- Entry point
- Web app
Data exposed or at risk
Organizations involved
[Breached][Critical]Osaka, Osaka, ChuoManufacturing136,968 leaked
SOFT99 corporation
Sources
- [1][Official]ソフト99公式オンラインショップへの不正アクセスによる 個人情報漏えいの可能性に関するお詫びとお知らせSOFT99 corporation · 2026-11-10 16:00