Clustered 8 filings across 7 jurisdictions · filing window Dec 1, 2025 → Apr 15, 2026. View entity profile → Other incidents for this victim →
incident inc_48cf138adc284ec7 · merge_method human · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Materiality delta · SEC filing delay — no SEC 8-K in this cluster.
CA IA MT OR TX WA
Leak Site · State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
8 filings across 7 jurisdictions · Dec 1, 2025 – Apr 15, 2026 · 4 milestones
Sep 29, 2025
Reported by WASHINGTON AG filing
Oct 31, 2025
Reported by WASHINGTON AG filing
Nov 11, 2025
When the intrusion reportedly occurred, per the linked filings
Nov 11, 2025
Reported by TEXAS AG, OREGON AG filings
Records: 1.2M Records | Updated: 04 Feb 2026 | Note: Make the right decision, don't be the next headline. | This is the direct result of advisors advising you against paying a ransom. It has the opposite effect. Do NOT provoke us again and pay the ransom when we contact you.
The Trustees of the University of Pennsylvania, a education sector entity reported a other incident to the Washington Attorney General. The organization became aware of the incident on 2025-10-31 and filed notice on 2026-04-15. 5,878 Washington residents were affected. 166 days elapsed between awareness and notification. 1 days to identify the breach. 0 days to contain the breach.
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.
The University of Pennsylvania notified California residents of a data breach involving a third-party Oracle E-Business Suite application. A previously unknown vulnerability (zero-day) in Oracle software allowed unauthorized access to data between August 9 and August 11, 2025. Affected data included Social Security numbers, names, addresses, and bank account information. The University engaged cybersecurity experts, notified law enforcement, applied patches, and is offering 24 months of credit monitoring.
University of Pennsylvania reported a data breach to the Montana Attorney General. The breach was reported on 2025-12-01. The breach occurred on 11/11/2025. 465 Montana residents were affected.
Affected (this filing): 465
University of Pennsylvania, a education sector entity reported a data breach to the Iowa Attorney General. The breach was reported on 2025-12-01.
The University of Pennsylvania, a education sector entity reported a unauthorized access incident to the Washington Attorney General. The organization became aware of the incident on 2025-09-29 and filed notice on 2025-12-01. 6,413 Washington residents were affected. 63 days elapsed between awareness and notification. 51 days to identify the breach. 0 days to contain the breach.
Affected (this filing): 6,413
The University of Pennsylvania based in Philadelphia, Pennsylvania, a educational institution entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-11-11 and reported on 2025-12-03. 11,455 Texas residents were affected. 442,500 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Financial Information (e.g. account number, credit or debit card number). Consumers were notified via U.S. Mail.
Affected (this filing): 11,455
University of Pennsylvania reported a data breach to the Oregon Attorney General. The breach was reported on 2025-12-22. The breach occurred during 11/11/2025. The breach was discovered on 11/11/2025. 2,722 individuals were affected. Notice was sent on 12/1/2025.
Affected (this filing): 2,722
Affected (this filing): 5,878