HackingEducationEducationData MishandlingSupply Chain (3P Vendor)Customer Data InvolvedGovernment IDIdentity (basic)MediumContained

The Trustees of the University of Pennsylvania

bd_ebfa6b15607e7cd7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 22, 2024

Filed

May 24, 2024

To disclose

9 weeks

Affected · nationwide

3881 in this filing

Linked

3 filings

Confidence

66%

Full breach record for The Trustees of the University of Pennsylvania →3 incidents on file

University of Pennsylvania reported a third-party vendor breach on 10/29/2023, discovered 03/22/2024, affecting 388 individuals (1 in Maine). Compromised data included names and Social Security Numbers. The university notified affected individuals in writing on 04/09/2024 and provided 24 months of credit monitoring via Experian.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Mar 22, 2024 → Filed with AG May 24, 202463d ⏱ ME AG >30d9 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 145 days

discovery → filing · 9 weeks / 63 days

Oct 29, 2023

Begins

Mar 22, 2024

Discovered

May 24, 2024

Filed

vs. sector median

+2 wks slower

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_c1fca5fc6036087c2024-05-24Verified
Indiana State AGbd_711e07d2b3e1e4c72024-04-09 · +45dCandidate

Name: The Trustees of the University of Pennsylvania
norm: the trustees of the university of pennsylvania
Domain: upenn.edu
Industry: Education

Name: The Trustees of the University of Pennsylvania
norm: the trustees of the university of pennsylvania
Domain: upenn.edu
Industry: Education
Industry: Educationllm

Discovered: Mar 22, 2024
Breach occurred: Oct 29, 2023
Undetected for: 145 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 9, 2024
Affected individuals: 388state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: Partner
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: supply_chain

During the incident: Sent written notification to affected individuals
Offered 24 months of credit monitoring and identity restoration services through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(63 days from discovery to filing)
Compliance flags: ME AG >30d · 63d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Mar 22, 2024
→ Filed with AG: May 24, 2024
63d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Mar 22, 2024 → Filed with AG: May 24, 2024	63d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Indiana State AGApr 9 · first

Massachusetts State AG+45d

Maine State AG+45d · this page

Pattern: first filing Apr 9 (IN), last May 24 (ME) — a 45-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/c10c2fd9-4359-422c-99f6-9c57ff8a5a54.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 24, 2024
Raw hash: 35082c505cbffcd3ae52b04a8b0d559e49068809c78e2361d3bd8987cda48d14

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityThe Trustees of the University of Pennsylvania

Victim entityThe Trustees of the University of Pennsylvania

Incidentdiscovered Mar 22, 2024

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov