One linked filing — more sources may join as they report · filed Jun 1, 2026. View entity profile → Other incidents for this victim →
incident inc_25c1615156e740f3 · merge_method deterministic
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) · Financial account
MA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
First Holding Management Company issued a Massachusetts data security notice regarding an incident affecting personal information. The notice details the provision of free credit monitoring and fraud assistance services via HaystackID. Affected data includes Social Security Numbers, dates of birth, and financial account information. No specific count of affected individuals or attack vector was disclosed in the notice.
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.