Investigating

Niigata University Hospital: endocrine/metabolic patient data may have leaked after USB loss

Possible data leak: A USB used in an in-hospital meeting on November 5, 2025 was found missing on November 18; disclosed March 25, 2026.

Last updated: 2026-11-09

Overview

Notice says “up to 116” (history summaries up to 18) so count blank. Patient ID, diagnosis, hospital and care period. Names, addresses and phones stated absent. Unencrypted.

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. USBメモリ紛失に関するお知らせとお詫び新潟大学医歯学総合病院 · 2026-11-09

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