HackingHealthcareHealthcarePhishingData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Chadron Medical Clinic, PC

bd_d4ca233b6d4ec04a · schema v1 · pii pii-v2

Severity

Medium

Discovered

May 14, 2025

Filed

Aug 21, 2025

To disclose

—

Affected

Not disclosed

Confidence

65%

Full breach record for Chadron Medical Clinic, PC →

Chadron Medical Clinic, PC notified Nebraska AG of a data breach occurring between May 7 and May 14, 2025. Unauthorized individuals viewed patient information via email tenant compromise. Affected data includes names, SSNs, DOBs, and driver's license numbers. The clinic retained legal and forensic counsel, offered 12 months of credit monitoring via Cyberscout/TransUnion, and provided fraud assistance. Notification letters were mailed August 21, 2025.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 7 days

May 7, 2025

Begins

May 14, 2025

Discovered

Aug 21, 2025

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: Chadron Medical Clinic, PC
norm: chadron medical clinic

Name: Chadron Medical Clinic, PC
norm: chadron medical clinic
Industry: Healthcarellm

Discovered: May 14, 2025
Breach occurred: May 7, 2025 – May 14, 2025
Undetected for: 7 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 21, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1114 Email CollectionT1078 Valid Accounts
Threat actor: External
Initial access: phishing_link

During the incident: Began an investigation into the scope and nature of the suspicious activity
Retained legal counsel
Retained and third-party forensic specialists to investigate the suspicious activity
Began a comprehensive review of the data set
Providing you with access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
Changes made: Providing you with access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
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.

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/489b9217-0423-465b-b34d-67766ed208f6.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 21, 2025
Raw hash: b46886f6ccccf757ed01a9febc6a8596e0ce3c316528869ddeb32ae6ef288fcf

Reporting entityChadron Medical Clinic, PC

Victim entityChadron Medical Clinic, PC

Incidentdiscovered May 14, 2025

Stated responseBegan an investigation into the scope and nature of the suspicious activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov