Overview
This publisher-stated total comprises 81 individually obtained entries and 3,261 staff-related sets. It counts records, not unique people, because users can have multiple email addresses. Additional acquisition remains under investigation. Admissions and Open College impacts were not confirmed. A PHP-related review revealed the incident but does not establish PHP as the entry cause.
Timeline
- Occurred
- Discovered
- Disclosed
Unauthorized access occurred.
Acquired-record count and response published.
Organization response
Waseda suspended affected systems, restricted communications and access, changed administrator passwords, engaged specialists and authorities, and issued individual password guidance. Alumni MyWaseda and related services were temporarily suspended.
What you can do
Follow official password-change instructions and avoid unsolicited links and attachments impersonating the university.
Sources
- Notice Regarding a Personal Information Breach Caused by Unauthorized AccessWaseda University · 2026-11-09