早稲田大学Data breach / unauthorized access incident
- Occurred on
- August 31, 2026
- Announced on
- November 9, 2026
- Severity
- SCompromise of deep personal data or usable credentials.
- Scale
- 3,342 records
- Main impact
- It was confirmed that a third party breached MyWaseda's user information management system and improperly obtained 3,342 user records, including staff/faculty ID numbers, names, Waseda email addresses, department names, qualification names, and encrypted passwords; affected individuals include faculty/staff, students, and alumni.
- Information involved
- Full nameEmail addressUser / member IDPassword
- Cause / key point
- A breach due to unauthorized access by a third party was confirmed, and the intrusion was discovered during a system inspection prompted by addressing a PHP vulnerability.About Exploitation of vulnerabilities
- Industry
- Education
- Listing / capital
- Non-profit corporation
- Sources
- Last updated
- November 10, 2026
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Written & reviewed
Reviewed byYutaro SasaoFounder & CEO, MediaLeap Inc.
CEO of MediaLeap Inc. Working on both sides of web advertising and web media since 2013; founded the company in May 2025.
Review scope: cross-checking against primary sources (official and government announcements), verifying claims stay within the facts, and checking source attribution。Last reviewed:
Written by:Leak Watch editorial team (AI-assisted drafts verified against sources by the editorial team) · Reviewer profile · Request a correction
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Attack method classification: Exploitation of vulnerabilities(Breaking in through holes in software and devices)
Read the Exploitation of vulnerabilities guide and national trends →