Clustered 2 filings across 2 jurisdictions · filed Sep 25, 2020. View entity profile → Other incidents for this victim →
incident inc_ed55c41f75104808 · 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.
MI MT
HHS OCR · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Apr 14, 2020
When the intrusion reportedly occurred, per the linked filings
Oaklawn Hospital reported a data breach to the Montana Attorney General. The breach was reported on 2020-09-25. The breach occurred from 4/14/2020 to 4/15/2020. 1 Montana residents were affected.
Affected (this filing): 1
Oaklawn Hospital reported to HHS on 2020-09-25 a Hacking/IT Incident affecting 26,861 individuals. Breached information located on Email. Employees were victims of a phishing attack exposing ePHI including names, DOB, SSN, and clinical data. CE provided credit monitoring and retrained staff.
Affected (this filing): 26,861
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.