Overview
105 people: name, address and Medica contest ID.
Timeline
- Occurred
- Discovered
- Disclosed
Organization response
Per the notice, the organisation investigated and contained the incident, notified individuals and offered monitoring or protective resources.
What you can do
Be wary of emails, SMS or calls impersonating the organisation; do not open links or attachments or enter passwords or card details. Change reused passwords on other services.
Sources
- 株式会社メディカ出版におけるランサムウェア被害について東京医療保健大学 · 2026-11-09