One linked filing — more sources may join as they report · filed Jul 16, 2021. View entity profile → Other incidents for this victim →
incident inc_f34a33f46e994e66 · 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) · Health (basic)
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jan 1, 2021 → Jan 31, 2021
When the intrusion reportedly occurred, per the linked filings
Mar 1, 2021
Reported by CALIFORNIA AG filing
Guidehouse, on behalf of Community Memorial Health System (Ventura, CA), disclosed a breach of a third-party secure file transfer service in January 2021. The incident compromised patient data including names, dates of birth, member IDs, addresses, and medical information. Guidehouse notified the health system on May 21, 2021, and offered two years of credit monitoring via Experian.
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.