Investigating

Shizuoka City: Arcadia intrusion leaked disaster-mail registrant data (some services still possible)

Mayor briefing Oct 14, 2026. Arcadia intrusion confirmed leakage for Shizuoka disaster-mail and dementia-mail registrants; phone-alert and Shimizu Hospital emergency contacts still under possible-leak review. Per-service subsets not summed → blank.

Last updated: 2026-11-09

Overview

Per-service 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. 委託先への不正アクセスによる個人情報漏えいについて(市長臨時記者会見資料)静岡市 · 2026-11-09

Related information

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