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Data breach

3,342 MyWaseda user records stolen at Waseda University

First reported · Last reported · 11 related reports

The system managing MyWaseda login user information at Japan's Waseda University was breached, and 3,342 records relating to academic staff, other staff, students and alumni were stolen. The records included names, employee numbers, email addresses, affiliations and encrypted passwords, and the total includes duplicates rather than representing the actual number of people affected. During checks related to a PHP vulnerability, the university discovered traces of an intrusion that occurred on 31 August and suspended some services.

Key facts

Affected organisation
Waseda University
Incident type
Data breach
Occurred / detected
2026-08-31
Scale of damage
3,342 user records stolen, including duplicates
Cause / method
Unauthorised access to the MyWaseda login user information management system
Location
Japan

If your data was exposed

Exposed dataNameEmailPassword

  1. Change your password, and also change it on any other site where you use the same one. Turn on two-factor authentication if available.
  2. Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.

Timeline

  1. Traces of unauthorised intrusion into the MyWaseda login user information management system were left behind.
  2. The intrusion discovered during checks related to a PHP vulnerability, the theft of 3,342 user records and the suspension of some services were disclosed.

11 related reports

The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.