One linked filing — more sources may join as they report · filed Sep 11, 2013. View entity profile → Other incidents for this victim →
incident inc_d4896cb1a0664906 · 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
May 16, 2013
When the intrusion reportedly occurred, per the linked filings
Jul 31, 2013
Reported by CALIFORNIA AG filing
Kaiser Foundation Health Plan, Inc. reported an accidental email disclosure of confidential member information on May 16, 2013. The incident involved the transmission of a file containing names, medical record numbers, contact details, and employer data to an unauthorized recipient. The error was discovered in late July 2013. The file was deleted, and no screening results were exposed.
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.