University of Pennsylvania data breach
The University of Pennsylvania breach happened on October 30, 2025 and exposed 623,750 accounts. 11 kinds of data were exposed.
Overview
- Site
- upenn.edu
- Breach date
- October 30, 2025
- Recorded on
- February 16, 2026
- Accounts exposed
- 623,750
- Exposed data
- Charitable donations, Dates of birth, Email addresses, Genders, Income levels, Job titles, Names, Physical addresses, Religions, Salutations, Spouses names
- Risk score
- 63 out of 100
Risk based on the exposed data
This breach scores 63 out of 100. The score is driven mostly by Physical addresses, Religions, Dates of birth.
The risk score is a guide to how dangerous a breach is, judged by the kinds of data exposed. The number of accounts is not included.
Breaches from the same period
- MyVidster (2025) (2025-10-24, 3,864,364 accounts)
- Substack (2025-10-23, 663,121 accounts)
- Zilvia.net (2025-11-06, 287,863 accounts)
What affected users should do
- Passwords were not exposed, but you may receive fake emails aimed at the exposed email addresses.
- Turn on two-factor authentication for your login.
This site organizes publicly available information about data breaches. Data as of February 16, 2026. Breach dates are as originally listed; when only the month is known, the date is recorded as the 1st.