Overview
586 registered members’ email addresses. An apology and deletion request followed immediately.
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
- 電子メールの誤送信による個人情報の漏えいについて北杜市 · 2026-11-09