✅ Official notice on file. The University of Pennsylvania filed this data breach notice with the California Attorney General on Dec 1, 2025. Compare it with the letter you received: the official copy is linked below.
The University of Pennsylvania reported a data breach caused by unauthorized access to its computer network. The information involved includes home address.
Key facts
| Discovered | Nov 11, 2025 |
|---|---|
| Incident type | Network intrusion |
| Data exposed | Home address |
| Letter sent | Dec 1, 2025 |
| Reported to California AG | Dec 1, 2025 |
| Company helpline | 1-888-743-0023 |
Free credit monitoring
The University of Pennsylvania is offering 24 months of Experian IdentityWorks at no cost to people who received the letter.
What to do now
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the The University of Pennsylvania helpline at 1-888-743-0023 if you have questions about your letter.
Timeline
- Nov 11, 2025 — The University of Pennsylvania discovers the incident
- Dec 1, 2025 — Notification letters sent
- Dec 1, 2025 — Breach reported to the California Attorney General
Other recent data breaches
- Inner City Education Foundation data breach
- Nishiyamato Academy data breach
- Merced Union High School District data breach
- Lincoln Technical Institute data breach
- Monmouth University data breach
Source: notification letter and filing submitted by The University of Pennsylvania to the California Attorney General. BreachLetter is not affiliated with The University of Pennsylvania. Details extracted from the official letter; always follow the instructions in your own copy.