Harvard University

Harvard University

Data Breach on October 13, 2025
Data Breach Report
Victimharvard.edu
Claimed ByCL0P
Date DiscoveredOct 13, 2025
DescriptionHarvard University is a private Ivy League research university based in USA (Massachusetts), offering undergraduate, graduate, and professional education programs.
Leak SizeUnknown

Credential Exposure for harvard.edu

We've indexed 95,390 @harvard.edu accounts from external breaches, plus 17,236 credentials for harvard.edu itself.

Last checked Oct 11, 2026

@harvard.edu addresses from external breaches
Third-party breaches92,681 accounts · across 2638 breaches · 79,606 with a plaintext password · most recent Oct 6, 2026
Combo lists30,995 accounts · most recent Oct 10, 2026
Passwords for harvard.edu accounts
Combo lists11,472 logins · most recent Oct 10, 2026
Infostealer logs6,926 logins · 4,867 infected devices · most recent Oct 10, 2026

Logins may belong to customers or to staff, and the data doesn't say which. None of this is necessarily connected to the ransomware attack above.

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