Confirmed

Nagoya Medical Center: staff personal USB with data on 591 patients temporarily lost

On May 22, 2026 a staff member lost a personal USB holding patient data on the way back from a seconded hospital. Transit staff recovered it May 23 and returned it May 27. No leak/misuse found and external exposure is assessed as low, but the hospital disclosed July 17.

Last updated: 2026-11-09

Overview

591 people (patient ID, name, age, surgery name; subsets with bronchoscopy/cancer-stage/lesion-size data described only).

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. 患者様の個人情報を含むUSBメモリ紛失に関するお詫びとご報告について独立行政法人国立病院機構名古屋医療センター · 2026-11-09

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