Confirmed

Osaka Kyoiku University: 1,529 student/staff records leaked via wrong email attachment

A staff email with the wrong attachment sent 1,529 personal-data rows externally; disclosed June 23, 2026 (distinct from the earlier student BCC incident).

Last updated: 2026-11-09

Overview

1,529 records (1,476 students etc., 53 staff). Sub-counts described; total stored.

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. 個人情報の漏えい(添付ファイル誤り)について国立大学法人大阪教育大学 · 2026-11-09

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