Kyoto City KYOCERA Museum of Art emails potentially exposed in ARTPASS contractor breach
SpilloverSpillover from the another organization incident · View original incident →On November 4, 2026, the City of Kyoto received a report from the operator of ARTPASS, the ticketing service for the Kyoto City KYOCERA Museum of Art, that email addresses may have been leaked. This followed unauthorized access to the systems of Arara, to which the operator had outsourced email delivery, and the extent of the impact involving the museum was not disclosed. No leak of information managed by the City of Kyoto or compromise of city systems had been confirmed, and the city said it was investigating the scope of the impact while urging caution over malicious emails.
Key facts
- Affected organization
- Kyoto City KYOCERA Museum of Art
- Original incident
- Intrusion into Japanese security firm's development environment raises customer data concerns
- Incident type
- Data breach
- Occurred / detected
- 2026-11-04
- Scale of damage
- Not confirmed
- Cause / method
- Unauthorized access to a contractor serving ARTPASS and Asoview
- 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
- A potential information leak involving the Kyoto City KYOCERA Museum of Art came to light following unauthorized access to a contractor.
Original incident
This is spillover from the another organization incident.
Intrusion into Japanese security firm's development environment raises customer data concerns
Impact: Possible exposure of some customers' company names, names, email addresses, and service communications information
A Japanese security services provider detected suspected third-party access to its development administration environment after an employee's GitHub credentials were compromised. It is investigating whether some customers' company names, names, email addresses, and service communications information may have been viewed or obtained. The company said it would respond across the organization to prevent recurrence and restore trust.
Related reports: 14 · 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.