Investigating

Tohoku University: hospital clinical-trial NAS patient data may have leaked after server intrusion

Server intrusion was confirmed April 16, 2026; on April 23 a hospital trial-document NAS was also found accessed with possible patient-data leakage; disclosed May 1.

Last updated: 2026-11-09

Overview

No published count (count blank). Inpatient IDs/names and trial-physician name/email among fields.

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. 本学への不正アクセスについてのご報告とお詫び(6/17追記)国立大学法人東北大学 · 2026-11-09

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