Harvard - 850,537 breached accounts

· Haveibeenpwned · Nov. 3, 2026, 8:16 a.m.
Summary
In November 2025, a data breach at Harvard University exposed over 850,000 unique email addresses and extensive personal information related to its alumni and fundraising efforts. The breach was linked to a group known as ShinyHunters, who threatened to leak the data unless a ransom was paid.