Clustered 2 filings across 2 jurisdictions · filed Dec 1, 2021. View entity profile → Other incidents for this victim →
incident inc_e91dc65a59fb440f · 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.
KS MT
HHS OCR · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Sep 28, 2021
When the intrusion reportedly occurred, per the linked filings
Great Plains Manufacturing, Inc. reported a data breach to the Montana Attorney General. The breach was reported on 2021-12-01. The breach occurred from 9/28/2021 to 10/11/2021. 10 Montana residents were affected.
Affected (this filing): 10
Great Plains Manufacturing, Inc reported to HHS on 2021-12-01 a Hacking/IT Incident affecting 4110 individuals. Breached information located on Network Server. The incident involved PHI including names, dates of birth, and SSNs. The entity provided credit monitoring and implemented security safeguards.
Affected (this filing): 4,110
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.