Investigating

Hayama Town: Arcadia intrusion may have exposed data on 8,850 disaster-mail registrants

Disclosed Oct 14, 2026. SpeeCAN RAIDEN intrusion may have exposed registrant name/email/phone/FAX. 8,850 registrants (as of Sep 2026).

Last updated: 2026-11-09

Overview

8,850 people.

Timeline

  1. Occurred
  2. Discovered
  3. 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

  1. 防災情報メールサービスの停止と個人情報漏洩の可能性について葉山町 · 2026-11-09

Related information

arcadia-speecan-raiden-possible-leak-2026

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