HackingHealthcareHealthcareStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDPHIHealth (basic)MediumContained

Morrison Community Hospital District

bd_3d2f9ac101784c9f · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 24, 2023

Filed

Nov 28, 2023

To disclose

9 weeks

Affected

14state residents only

Linked

3 filings

Confidence

65%

Full breach record for Morrison Community Hospital District →3 incidents on file

Morrison Community Hospital experienced a network security incident on September 24, 2023, involving unauthorized access. The investigation concluded November 6, 2023, determining that personal and health information (including SSN, DOB, medical records) of patients may have been acquired. No evidence of misuse was found. The hospital engaged forensic investigators, secured the network, and offered 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >30d9 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 9 weeks / 65 days

Sep 24, 2023

Begins

Sep 24, 2023

Discovered

Nov 28, 2023

Filed

vs. sector median

3 wks faster

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

A leak claim by alphv about this victim predates this filing by 46 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

HHS OCRbd_ad0fe164d2f8186d2023-11-23 · +5dCandidate
Massachusetts State AGbd_00c5c29a500d71b72023-12-22 · +24dCandidate

Name: Morrison Community Hospital District
norm: morrison community hospital district
Domain: morrisonhospital.com

Name: Morrison Community Hospital District
norm: morrison community hospital district
Domain: morrisonhospital.com
Industry: Healthcarellm

Discovered: Sep 24, 2023
Breach occurred: Sep 24, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 22, 2023
Affected individuals: 14state-resident count only
Data types: Identity (basic)Government IDPHIHealth (basic)
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Shut off all access to the network
Engaged a specialized third-party forensic incident response firm to assist with securing the network environment and investigating the extent of unauthorized activity
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: Reviewing and enhancing our technical safeguards to prevent a similar incident
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(65 days from discovery to filing)
Compliance flags: Leak >30d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

HHS OCRNov 23 · first

Montana State AG+5d · this page

Massachusetts State AG+29d

Pattern: first filing Nov 23 (IL), last Dec 22 (MA) — a 29-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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-891.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 28, 2023
Raw hash: aea1d16710973c82f23e12b4f72a814af6cad6c33f3e6a371fb2640a1a0bee7c

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMorrison Community Hospital District

Victim entityMorrison Community Hospital District

Incidentdiscovered Sep 24, 2023

Stated responseShut off all access to the network

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancedojmt.gov