Clustered 2 filings across 2 jurisdictions · filed Apr 19, 2017. View entity profile → Other incidents for this victim →
incident inc_751d996f36aa4816 · 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.
CA MT
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Apr 18, 2016
When the intrusion reportedly occurred, per the linked filings
Northdrop Grumman Systems reported a data breach to the Montana Attorney General. The breach was reported on 2017-04-19. The breach occurred from 4/18/2016 to 3/29/2017. 1 Montana residents were affected.
Affected (this filing): 1
Equifax Workforce Solutions (TALX), the W-2 online portal provider for Northrop Grumman Systems Corporation, was accessed by unauthorized third party(ies) between April 18, 2016 and March 29, 2017. Affected data includes names, addresses, work and personal contact information, Social Security numbers, employer identification numbers, and wage/tax information from 2016 W-2 forms. Northrop Grumman disabled non-SSO portal access and coordinated with law enforcement.
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.