One linked filing — more sources may join as they report · filed Feb 9, 2021. View entity profile → Other incidents for this victim →
incident inc_d5834758f71e40c5 · merge_method deterministic
Discovered → first regulatory filing
Not recorded for this incident
Discovery variance · Leak precedence · Materiality delta · SEC filing delay · Filing span — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
Government ID · Identity (basic)
ME
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Sep 5, 2020
When the intrusion reportedly occurred, per the linked filings
Dec 21, 2020
Reported by MAINE AG filing
Great Northern Corporation, a commercial entity based in Appleton, WI, reported a ransomware incident on September 5, 2020, discovered on December 21, 2020. The breach affected 5,097 individuals, including one Maine resident. Personal information, specifically Social Security Numbers, was compromised. The company provided 12 months of credit monitoring through TransUnion.
Affected (this filing): 5,097
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.