Investigating

Kagawa Pref.: Arcadia intrusion may have exposed disaster-mail and staff-system registrant data

Disclosed Oct 13, 2026. About 25,566 disaster-mail emails and about 8,593 staff-assembly system records may have leaked. Subsets not summed.

Last updated: 2026-11-09

Overview

Two “about” 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. 不正アクセスによる防災情報メール等登録情報の流出について香川県 · 2026-11-09

Related information

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