One linked filing — more sources may join as they report · filed Apr 23, 2013. View entity profile → Other incidents for this victim →
incident inc_8c1d365045294a18 · 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
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jan 1, 2011 → Mar 31, 2011
When the intrusion reportedly occurred, per the linked filings
Mar 31, 2011
Reported by CALIFORNIA AG filing
OneWest Bank, FSB disclosed a network intrusion affecting its service provider during Q1 2011. The breach exposed customer PII including names, addresses, birthdates, phone numbers, driver's license numbers, passport numbers, and Social Security Numbers. The bank provided 12 months of free credit monitoring and fraud alerts 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.