One linked filing — more sources may join as they report · filed Feb 12, 2026. View entity profile → Other incidents for this victim →
incident inc_159311d1bbd447b5 · 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.
Identity (basic) · Government ID · PHI
VT
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Dec 15, 2025 → Dec 29, 2025
When the intrusion reportedly occurred, per the linked filings
Dec 29, 2025
Reported by VERMONT AG filing
NTT Health Plan notified consumers of a data breach involving a third-party business associate, Quantum Health. Between Dec 15-29, 2025, a claims report containing PII and PHI (names, SSNs, member IDs, claim info) was inadvertently shared with another plan member. No evidence of misuse was found. Remediation included securing data, deleting the report, and offering 24 months of Experian IdentityWorks.
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.