MEDIUMData Breach
Global

JP: Hokkaido hospitals data leak may hit 510k, HDDs sold online blamed

·Source: DataBreaches.net

Updated:

Executive Summary

NHK News reports: Japan’s National Hospital Organization says hard drives from two hospitals in Hokkaido were listed on auction sites, resulting in a leak of personal information from at least 180,000 patients and employees. The group warns that the leak could potentially affect up to 510,000 people. Last June, the Hokkaido Medical Center — part... Source

Analysis

NHK News reports: Japan’s National Hospital Organization says hard drives from two hospitals in Hokkaido were listed on auction sites, resulting in a leak of personal information from at least 180,000 patients and employees. The group warns that the leak could potentially affect up to 510,000 people. Last June, the Hokkaido Medical Center — part... Source
Source Attribution

Originally published by DataBreaches.net on Jun 8, 2026.

Related Threats

HIGHData Breach

Maine disables data breach notification portal after fake disclosures

Maine has taken its public data breach reporting portal offline after fraudulent breach disclosures were published on the state's website, prompting a review of procedures to prevent abuse in the future. [...]

BleepingComputer
HIGHData Breach

Privacy own-goal: World Cup blunder leaks Lionel Messi’s passport details

Argentina's World Cup squad had their passport numbers leaked before a ball was kicked - not by hackers, but by someone who failed to redact a document properly. document. It's a mistake that has been made many times in the past... Read more in my article on the Hot for Security blog.

Graham Cluley
HIGHData Breach

Bankruptcy admin approves settlement fund of $47 million for 23andMe data breach victims

About 7 million customers of the genetics testing company had their data stolen by hackers starting in April 2023, and many had their information posted on the dark web.

The Record