HackingHealthcareEducationHealthcareVulnerability ExploitData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDHealth (basic)PHIMediumContained

University of Nebraska Medical Center

bd_1e6f251473c63db1 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 1, 2026

Filed

Apr 17, 2026

To disclose

—

Affected

186state residents only

Linked

2 filings

Confidence

66%

Full breach record for University of Nebraska Medical Center →5 incidents on file

University of Nebraska Medical Center (UNMC) disclosed a breach of its REDCap application affecting 186 Nebraska residents. Unauthorized access occurred between September 20, 2023, and February 3, 2026, due to a vulnerability allowing remote access. Data potentially exposed includes names, SSNs, DOBs, medical record numbers, and PHI. UNMC took the app offline, engaged partners, notified residents in April 2026, and offered credit monitoring.

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Incident timeline

undetected · 865 days

Sep 20, 2023

Begins

Feb 1, 2026

Discovered

Apr 17, 2026

Filed

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_def5c37e153a0e472026-04-17Verified

Name: The Board of Regents of the University of Nebraska for and on behalf of the University of Nebraska Medical Center
norm: the board of regents of the university of nebraska for and on behalf of the university of nebraska medical center

Name: University of Nebraska Medical Center
norm: university of nebraska medical center
Domain: unmc.edu
Industry: HealthcarellmEducationllm

Discovered: Feb 1, 2026
Breach occurred: Sep 20, 2023 – Feb 3, 2026
Undetected for: 865 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 17, 2026
Affected individuals: 186state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PHI
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Took REDCap offline
Began an investigation with privacy and cybersecurity partners
Began mailing notification letters to affected individuals via the United States Postal Service First-Class mail
Established a dedicated, toll-free call center to answer questions
Changes made: Moved REDCap to an updated version of REDCap that was released to address the vulnerability
Enabled enhanced logging and security controls
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

HHS OCRApr 17 · first

Nebraska State AGApr 17 · first · this page

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://nebraska.gov/ago/data-breach/documents/a966469f-755a-4a59-b9b5-d5cb33655023.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 17, 2026
Raw hash: 78035fe8e55cf49c9efbb6831048a2c76469c23f056c20b84af405cb80d85b73

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityThe Board of Regents of the University of Nebraska for and on behalf of the University of Nebraska Medical Center

Victim entityUniversity of Nebraska Medical Center

Incidentdiscovered Feb 1, 2026

Stated responseTook REDCap offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov