Social EngineeringHealthcareHealthcarePhishingStolen CredentialsCustomer Data InvolvedTargetedPHIHealth (basic)Identity (basic)LowContained

United Hospital District, Inc.

bd_07cbf4bae5804ac4 · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 12, 2018

Filed

Feb 4, 2019

To disclose

8 weeks

Affected

3state residents only

Linked

2 filings

Confidence

65%

Full breach record for United Hospital District, Inc. →

United Hospital District notified Montana residents that an unauthorized individual accessed an employee's email account between June 10 and June 27, 2018. The breach was discovered on December 12, 2018, following a forensic investigation. Protected health information, including names, patient IDs, and medical data, was exposed. No evidence of misuse was found.

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Incident timeline

undetected · 185 days

discovery → filing · 8 weeks / 54 days

Jun 10, 2018

Begins

Dec 12, 2018

Discovered

Feb 4, 2019

Filed

vs. sector median

1 wks faster

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_c3103895e819594d2019-02-04Verified

Name: United Hospital District, Inc.
norm: united hospital district

Name: United Hospital District, Inc.
norm: united hospital district
Industry: Healthcarellm

Discovered: Dec 12, 2018
Breach occurred: Jun 10, 2018 – Jun 27, 2018
Undetected for: 185 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 30, 2019
Affected individuals: 3state-resident count only
Data types: PHIHealth (basic)Identity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: External
Initial access: phishing_link

During the incident: Commenced a prompt and thorough investigation
Worked very closely with external cybersecurity professionals
Conducted an extensive forensic investigation
Conducted a manual email review
Changes made: Modified practices to enhance the security and privacy of protected health information
Continually evaluate practices to safeguard protected health information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(54 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

HHS OCRFeb 4 · first

Montana State AGFeb 4 · 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://dojmt.gov/wp-content/uploads/United-Hospital-District.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 4, 2019
Raw hash: 44f22c4666da219a40af9ecebdfb883cb308b998f616d69777fc1cc6e03e7c9a

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityUnited Hospital District, Inc.

Victim entityUnited Hospital District, Inc.

Incidentdiscovered Dec 12, 2018

Stated responseCommenced a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov