One linked filing — more sources may join as they report · filed Oct 26, 2021. View entity profile → Other incidents for this victim →
incident inc_8c708b8596d84998 · 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) · Government ID · Financial account
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Aug 25, 2021
When the intrusion reportedly occurred, per the linked filings
Aug 27, 2021
Reported by CALIFORNIA AG filing
Blue Cross of California reported a ransomware attack on a third-party vendor on August 25, 2021. The incident exposed member PII and PHI, including names, SSNs, Medicare IDs, and bank account details. Blue Cross shut down and rebuilt the affected server and offered one year of Experian IdentityWorks monitoring to affected individuals.
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.