Akita Northern Happinets fan club data leak affects 41 members
SpilloverSpillover from the Arara incident · View original incident →Akita Northern Happinets announced the findings of an investigation into a fan club personal data leak reported to the team on November 5. Unauthorized access to the system of arara, a subcontractor handling email distribution, exposed the email addresses of 41 members, including the names of two of them. No specific harm resulting from misuse of the leaked information has been confirmed.
Key facts
- Affected organization
- Akita Northern Happinets
- Original incident
- Arara email service hack exposes 81.33 million email addresses
- Incident type
- Data breach
- Occurred / detected
- 2026-11-05
- Scale of damage
- Personal information of 41 fan club members
- Cause / method
- Not confirmed
- Location
- Japan
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Exposed dataEmailName
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Timeline
- The leak of email addresses and names involving 41 fan club members was disclosed, with no confirmed harm from misuse of the information.
Original incident
This is spillover from the Arara incident.
Arara email service hack exposes 81.33 million email addresses
81.3MImpact: 81,329,467 email addresses and some customers' member information
Japan's Arara Message email delivery service was breached through a web server vulnerability, exposing email addresses and some customers' member information. Further investigation put the number of unique email addresses exposed at 81,329,467. The attacker also abused the service to send up to approximately 7.13 million emails impersonating credit card companies, and the company isolated the servers and completely suspended its email delivery service.
Related reports: 20 · last report →
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.