Harvard’s alumni systems breach exposed data for 850,500 accounts
Hackers broke into Harvard University’s Alumni Affairs and Development systems in November 2025 and took data tied to more than 850,000 unique email addresses. The university later said the exposed records reached students, alumni, donors, staff, and faculty, while the breached systems did not hold Social Security numbers, passwords, payment card information, or financial information. Harvard’s disclosed data loss Klara Jelinkova, Harvard’s Vice President and University Chief Information Officer, said…