L’Arc-en-Ciel fan club email addresses leaked in Arara breach
SpilloverSpillover from the Arara incident · View original incident →L’Arc-en-Ciel announced on November 10 that fan club users’ email addresses had been leaked following a breach of the external email delivery service Arara Message. Those affected were subscribers to the email service for paid members as of October 31, 2026, and email addresses were the only information confirmed to have been leaked. The operator, Fanplus, switched to a new email delivery system.
Key facts
- Affected organization
- L’Arc-en-Ciel Fan Club
- Original incident
- Arara email service hack exposes 81.33 million email addresses
- Incident type
- Data breach
- Occurred / detected
- 2026-10
- Scale of damage
- Not confirmed
- Cause / method
- Unauthorized access to Arara
- 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
- The L’Arc-en-Ciel fan club data leak resulting from unauthorized access to Arara became known.
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.