University of Pennsylvania Data Breach
Status: Confirmed
Breach Intelligence Summary
Entity: University of Pennsylvania · Actor: ShinyHunters · Source: DataBreach.com / ObscureIQ intelligence
Attack: Social Engineering via Social engineering
Timeline: Breach (Oct, 2025) · Reported (Feb, 2026) · Leak (Feb, 2026)
Exposure: 651K+ records · Birthday, Charitable donations, Dates of birth, Email, Genders, Home Address, Income levels, Job titles, Name, Names, Phone Number, Physical addresses, Religions, Salutations, Spouses names
Status: Confirmed · Risk: Moderate (Phishing / SIM swap)
Summary
The University of Pennsylvania breach detected on October 31 2025 was a sophisticated intrusion attributed to ShinyHunters (Scattered Lapsus$ Hunters). The attackers gained access by compromising a PennKey SSO account allowing them to move laterally through systems like Salesforce and SharePoint. Before the full data dump the group gained notoriety by weaponizing Penn’s internal tools to send offensive mass emails to over 700 000 students and alumni turning a standard theft into a public relations nightmare. The exfiltrated data is highly granular containing 3 062 299 full names , 2 814 987 street addresses , 1 858 436 dates of birth , 643 833 phone numbers and 623 964 emails . Most critically, the leak exposed donation amounts and internal dossiers on “Ultra High Net Worth” donors, including high-profile alumni like the Trump family. These files contained sensitive internal commentary and “wealth band” assessments, providing a roadmap for future social engineering attacks against the university’s donor base.
About University of Pennsylvania
University of Pennsylvania is the organization affected by this breach. User data may have been generated through account creation, service usage, or business operations.
If you have interacted with University of Pennsylvania in any capacity, your data may be included in this breach.
Threat Actor: ShinyHunters
This breach has been attributed to ShinyHunters. The group is known for data theft campaigns targeting organizations through various intrusion methods.
- Social engineering
Breach Exploitation Status
Moderate
Status
Detected
Possible
Possible
Unknown
Unknown
5+ years (high persistence)
Dates of birth are permanent and addresses change slowly. Combined with other fields, this data sustains long-tail targeting risk.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 651K+ records has been identified in breach intelligence sources.
- The data is indexed and searchable across breach notification platforms.
Impact
This breach carries moderate risk due to the nature of exposed data fields and the scale of affected records.
- Targeted phishing referencing University of Pennsylvania accounts or services
- SIM-swap attempts where phone numbers are present
- Physical mail scams and address-based identity verification fraud
- Age/DOB used to bypass identity verification questions
- Data broker enrichment and resale
Recommendations for Impacted Individuals
If you believe your information may be included:
Non-clients may request a breach impact review.
University of Pennsylvania account updates
Password reset requests
Verify directly through official channels.
Email compromise is often the first pivot point.
Frequently Asked Questions
In Oct, 2025, University of Pennsylvania experienced a data breach that resulted in the exposure of approximately 651K+ records containing personal information.
The exposed data includes Birthday, Charitable donations, Dates of birth, Email, Genders, Home Address, Income levels, Job titles, Name, Names, Phone Number, Physical addresses, Religions, Salutations, Spouses names.
Approximately 651K+ records were affected based on current breach intelligence.
Yes. This breach is treated as confirmed based on data observed in breach intelligence platforms.
Data circulation has been detected across breach-sharing channels. Downstream exploitation risk exists based on the nature of the exposed fields.
Rotate passwords associated with University of Pennsylvania, enable multi-factor authentication on email and financial accounts, and monitor for suspicious activity.
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Corporate Accountability
Organizations that collect personal data have a duty to implement reasonable safeguards and to notify affected individuals when breaches occur.
Scope assessments may evolve as investigations continue. Users should not rely solely on early estimates when making risk decisions.
ObscureIQ Advisory
We combine proprietary dark web access with commercial and restricted breach intelligence to verify exposure and assess real-world risk.
- A public-facing individual
- A high-profile executive
- A customer of University of Pennsylvania
- Or simply concerned about credential reuse
We can confirm whether your information is circulating and evaluate downstream threat vectors.