One linked filing — more sources may join as they report · filed Nov 7, 2025. View entity profile → Other incidents for this victim →
incident inc_7b9be2c938334053 · 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) · PII
VT
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Aug 5, 2025
Reported by VERMONT AG filing
KLA Instruments, a subsidiary of KLA Corporation, disclosed a data breach occurring on or around August 5, 2025, where an unauthorized party accessed corporate systems. The incident compromised personal information including names and contact details. KLA notified law enforcement, engaged forensic experts, and is offering two years of credit monitoring via IDX to affected individuals across multiple US states.
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.