One linked filing — more sources may join as they report · filed Mar 3, 2014. View entity profile → Other incidents for this victim →
incident inc_89831d938ae6484c · 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
Feb 18, 2014
When the intrusion reportedly occurred, per the linked filings
Feb 18, 2014
Reported by CALIFORNIA AG filing
St. Joseph Health (California) disclosed an error-based breach on February 18, 2014, where an employee inadvertently emailed an unencrypted Excel file containing patient names and health service details to an external investment firm (Cain Brothers). The breach was contained the same day upon recipient deletion. No SSNs or financial data were exposed. St. Joseph Health retrained staff and engaged Kroll for risk mitigation.
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.