Investigating

Izumiotsu City: Arcadia intrusion may have exposed data on 783 phone/FAX disaster registrants and 941 staff-mail accounts

Disclosed Oct 14, 2026. Arcadia intrusion may have exposed 783 citizens on phone/FAX disaster delivery (katakana name/phone/FAX) and 941 staff mass-mail accounts (name/email). Subsets not summed.

Last updated: 2026-11-09

Overview

Subsets not summed → 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. 電話・ファクス防災情報配信サービスの不正アクセスに伴う個人情報漏洩に関する注意喚起について泉大津市 · 2026-11-09

Related information

arcadia-speecan-raiden-possible-leak-2026

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