United Hospital District reported a data breach to the Montana Attorney General. The breach was reported on 2019-02-04. The breach occurred from 6/10/2018 to 6/27/2018. 3 Montana residents were affected.
Affected (this filing): 3
Clustered 2 filings across 2 jurisdictions · filed Feb 4, 2019. View entity profile → Other incidents for this victim →
incident inc_7558633bfd9e4bed · merge_method deterministic · confidence 100%
Time between earliest and latest filing
Not recorded for this incident
Discovery variance · Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
MN MT
HHS OCR · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jun 10, 2018
When the intrusion reportedly occurred, per the linked filings
United Hospital District reported a data breach to the Montana Attorney General. The breach was reported on 2019-02-04. The breach occurred from 6/10/2018 to 6/27/2018. 3 Montana residents were affected.
Affected (this filing): 3
United Hospital District, Inc. reported to HHS on 2019-02-04 a Hacking/IT Incident affecting 2,143 individuals. Breached information located on Email. An employee was the victim of an email phishing attack exposing PHI including names, addresses, SSNs, claims, and diagnoses. The entity notified HHS, individuals, and media, offered credit monitoring, and retrained staff.
Affected (this filing): 2,143
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.