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.
Regulatory clocksHIPAA✓ HHS notifiedFull clock table in Litigation Timeline
HHS OCRState AGConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforced
Affected (total reported)
1,545
Data types
—
Jurisdictions
2
MT ND
Linked filings
2
HHS OCR · State AG
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Breach window
Jun 28, 2020
When the intrusion reportedly occurred, per the linked filings
240 days
🦬Montana State AGFirst filinglinked via same-victim cross-source · 100%
Jacobson Memorial Hospital & Care Center reported a data breach to the Montana Attorney General. The breach was reported on 2021-02-23. The breach occurred from 6/28/2020 to 8/5/2020. 1,544 Montana residents were affected.
Affected (this filing): 1,544
🇺🇸NDHHS OCRMost recentlinked via same-victim cross-source · 100%
Jacobson Memorial Hospital Care Center reported to HHS on 2021-02-23 a Hacking/IT Incident affecting 1,545 individuals. Breached information located on Email. An employee was the victim of an email phishing attack exposing PHI including names, addresses, DOB, SSNs, and financial info. The CE implemented safeguards, retrained staff, and notified HHS, individuals, and media.
Affected (this filing): 1,545
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.