Investigating

Isahaya City: Arcadia SpeeCAN RAIDEN intrusion may have exposed disaster-mail registrant data

Disclosed around Oct 14, 2026 (vendor report Oct 13). Arcadia SpeeCAN RAIDEN intrusion may have exposed registered emails and FAX numbers. No headcount.

Last updated: 2026-11-09

Overview

No published headcount → blank.

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. 防災メールサービスへの不正アクセスによる個人情報漏洩の可能性諫早市 · 2026-11-09

Related information

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