HackingHealthcareHealthcareTargetedPHIHealth (basic)PIILowContained

Longhorn Imaging Center

bd_6278d2a28f2dff88 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jun 1, 2023

Filed

Sep 28, 2023

To disclose

17 weeks

Affected

24state residents only

Confidence

66%

Longhorn Imaging Center notified Montana residents of a June 2023 cyber incident impacting its internal patient portal. An unknown actor gained unauthorized access to health-related data, including names, medical info, and health insurance details. The company secured its environment, launched an investigation, and notified federal law enforcement.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 17 weeks / 119 days

Jun 1, 2023

Discovered

Sep 28, 2023

Filed

vs. sector median

+8 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed24 affectedView incident

Name: South Austin Health Imaging LLC
norm: south austin health imaging

Name: Longhorn Imaging Center
norm: longhorn imaging center
Industry: Healthcarellm

Discovered: Jun 1, 2023
Materiality determined: —
Notification sent: Sep 28, 2023
Affected individuals: 24state-resident count only
Data types: PHIHealth (basic)PII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: notified federal law enforcement
Initial access: exploit_public_facing

During the incident: Took steps to secure our digital environment
Launched an investigation
Implemented additional safeguards to further increase the security of our network systems
Notified federal law enforcement
Changes made: Implemented additional safeguards to further increase the security of our network systems to minimize the likelihood of a similar event occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(119 days from discovery to filing)
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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-730.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 28, 2023
Raw hash: c397f3af96155ed572b46897ff22bb7595cf54d4466119a3b55e652852ecb3c8

Reporting entitySouth Austin Health Imaging LLC

Victim entityLonghorn Imaging Center

Incidentdiscovered Jun 1, 2023

Stated responseTook steps to secure our digital environment

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov