Clustered 2 filings across 2 jurisdictions · filed Feb 20, 2019. View entity profile → Other incidents for this victim →
incident inc_eb34bf5b99a14711 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
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.
CA MT
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Dec 4, 2018
When the intrusion reportedly occurred, per the linked filings
Dec 26, 2018
Reported by CALIFORNIA AG filing
University of Washington Medical Center (UWMC) reported a data breach to the Montana Attorney General. The breach was reported on 2019-02-20. The breach occurred from 12/4/2018 to 1/10/2019. 5,717 Montana residents were affected.
Affected (this filing): 5,717
University of Washington Medical Center disclosed a data breach where a database misconfiguration exposed protected health information (PHI) and names/medical record numbers to the internet. The incident occurred between Dec 4, 2018 and Jan 10, 2019, was discovered on Dec 26, 2018, and reported to HHS OCR. No SSNs or financial data were involved.
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.