Clustered 2 filings across 2 jurisdictions · filed Jul 1, 2022. View entity profile → Other incidents for this victim →
incident inc_4d9ab16fa08a4461 · merge_method human · confidence 100%
Discovered → first regulatory filing
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
Feb 9, 2021
When the intrusion reportedly occurred, per the linked filings
Dec 22, 2021
Reported by CALIFORNIA AG filing
ATC Healthcare Services, LLC reported a data breach to the Montana Attorney General. The breach was reported on 2022-07-01. The breach occurred from 2/9/2021 to 12/22/2021. 3 Montana residents were affected.
Affected (this filing): 3
ATC Healthcare Services, LLC reported a phishing incident affecting employee email accounts between February 9, 2021, and December 22, 2021. The breach exposed customer PII, including names, SSNs, and financial account numbers. ATC secured accounts, offered credit monitoring, and enhanced security measures.
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.