HackingIdentity (basic)Government IDPIIMediumContained

CLINIC SERVICE CORPORATION

bd_a734ed6f2e0b76f1 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Aug 17, 2025

Filed

Jan 27, 2026

To disclose

—

Affected

Not disclosed

Linked

4 filings

Confidence

65%

Full breach record for CLINIC SERVICE CORPORATION →

Clinic Service Corporation notified Nebraska AG on Jan 27, 2026, regarding unauthorized network access between Aug 10-17, 2025, discovered Aug 17, 2025. Unnamed actors accessed patient/employee PII (names, SSNs, DOBs, addresses). Notices sent Jan 2, 2026. Response included law enforcement notification, policy review, and complimentary credit monitoring via Cyberscout/TransUnion.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 7 days

Aug 10, 2025

Begins

Aug 17, 2025

Discovered

Jan 27, 2026

Filed

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_22f44d5d94abcfc52026-01-28 · +1dVerified
HHS OCRbd_70d0488abe1fecee2026-01-28 · +1dVerified
Illinois State AGbd_2a8daf5bcc0b24b42026-02-01 · +5dVerified

Name: CLINIC SERVICE CORPORATION
norm: clinic service

Name: CLINIC SERVICE CORPORATION
norm: clinic service

Discovered: Aug 17, 2025
Breach occurred: Aug 10, 2025 – Aug 17, 2025
Undetected for: 7 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 2, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDPII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Began an investigation
Notified law enforcement
Reviewed our policies and procedures related to data privacy
Providing potentially impacted individuals with access to complimentary credit monitoring and identity protection services
Changes made: Providing potentially impacted individuals with access to complimentary credit monitoring and identity protection services
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 · 4 filings · 4 states

View merged incident ↗

Nebraska State AGJan 27 · first · this page

Massachusetts State AG+1d

HHS OCR+1d

Illinois State AG+5d

Pattern: first filing Jan 27 (NE), last Feb 1 (IL) — a 5-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://nebraska.gov/ago/data-breach/documents/8670aa87-dfe3-4359-ae66-3982a35410d0.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 27, 2026
Raw hash: 7fa4cab0d297947bb6642a7b3b70da9c080e2fd2c6a0b903b72c538bef29e32d

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCLINIC SERVICE CORPORATION

Victim entityCLINIC SERVICE CORPORATION

Incidentdiscovered Aug 17, 2025

Stated responseBegan an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov