Overview
NEC had placed the files on cloud storage to share with an unreported subcontractor, outside the contract, and kept files that should have been deleted. 77,851 deduplicated people (59,014 alumni, 15,035 students, 3,802 staff): names, university IDs and emails, student/staff numbers and affiliation.
Timeline
- Occurred
- Discovered
- 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
- 委託事業者における個人情報漏えいについて国立大学法人大阪大学 · 2026-11-09