Yamaguchi FG subsidiary Chiiki Shosha Yamaguchi leaks 3,287 email addresses
Yamaguchi Financial Group said unauthorized access to an outsourced email delivery service used by an e-commerce site operated by its subsidiary Chiiki Shosha Yamaguchi had exposed members’ email addresses. The leak occurred between July 1 and October 28, 2026, and involved 3,287 email addresses. Email addresses are the only information confirmed to have been leaked so far, and affected members will be contacted individually.
Key facts
- Affected organization
- Chiiki Shosha Yamaguchi
- Incident type
- Data breach
- Occurred / detected
- 2026-07-01
- Scale of damage
- 3,287 member email addresses leaked
- Cause / method
- Unauthorized access
- Location
- Japan
If your data was exposed
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organization’s official website or app.
Timeline
- Unauthorized access and a personal data leak involving a Yamaguchi Financial Group subsidiary were disclosed.
1 related reports
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organization’s official statements for accurate details.