One linked filing — more sources may join as they report · filed Nov 19, 2018. View entity profile → Other incidents for this victim →
incident inc_2299014a50384b7b · 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.
OR
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Mar 16, 2018
When the intrusion reportedly occurred, per the linked filings
Aug 30, 2018
Reported by OREGON AG filing
The Hanover INsurance Company and its subsidiary and affiliate insurance companies reported a data breach to the Oregon Attorney General. The breach was reported on 2018-11-19. The breach occurred during 3/16/2018 - 3/16/2018. The breach was discovered on 8/30/2018. 460 individuals were affected. Notice was sent on 11/19/2018.
Affected (this filing): 460
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.