Confirmed

Osaka Prefecture: Misaki HS students viewed left-behind files covering 180 students

On Nov 11, 2025 students viewed student-info materials a teacher left in a classroom after a meeting; after parent handling a May 22, 2026 press release followed (distinct from the Nishinari temporary-loss incident).

Last updated: 2026-11-09

Overview

180 students. Individual support plans, discipline notes, guidance plans and whole-year concern notes among fields.

Timeline

2025-11-11Occurred
2025-11-11Discovered
2026-05-22Disclosed

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

個人情報の漏えいについて大阪府 · 2026-11-09

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