University of Pennsylvania Data Breach
What Happened
In October 2025, the University of Pennsylvania was the victim of a data breach followed by a ransom demand, largely affecting its donor database. After the incident, the attackers sent inflammatory emails to some victims. The data was later published online in February 2026 and included 624k unique email addresses alongside names and physical addresses. For some donor records, additional personal information was exposed, including gender and date of birth. A small subset of records also contained religion, spouse name, estimated income and donation history.
Compromised Data
Recommended Actions
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Affected Accounts:
623.8 thousand
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Breach Occurred:
October 2025
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Added to HIBP:
16 Feb 2026
Recommended Actions
Change Your Password
If you haven’t already changed the password affected by this breach, do so immediately on every account where it was used.
Enable Two-Factor Authentication
Wherever 2FA is supported, add an extra layer of security to your account.
Get Aura for identity theft and credit protection. Keep your assets safe with fast fraud alerts, instant credit lock, and $1,000,000 identity theft insurance. Speak to a U.S. based fraud specialist 24/7.
Try Aura
Use a password manager to generate and store strong, unique passwords for all your accounts. 1Password helps protect your data with industry-leading security.
Try 1Password
Get Guardio for real-time protection after a breach. Guardio blocks AI-generated scam sites, fake login pages, and malicious pages designed to exploit leaked information. Built by cybersecurity specialists who track new threats 24/7, Guardio gives you immediate, expert-level protection plus clear steps to help you secure your accounts instantly.
Try Guardio