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.
Regulatory clocksCalifornia✓ CA 60-day OK · 51dFull clock table in Litigation Timeline
State AGConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedmoderate sensitivity
Affected (total reported)
—
Data types
2
Identity (basic) · Financial account
Jurisdictions
1
CA
Linked filings
1
all State AG
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Breach window
Jan 31, 2012
When the intrusion reportedly occurred, per the linked filings
Union Bank N.A. notified California regulators that a former contractor retained proprietary customer data (names, account numbers, addresses, phone, email) upon departure on Jan 31, 2012. Discovered Feb 15, 2012, the bank provided two years of credit monitoring. No evidence of misuse was found. Investigation was ongoing as of April 2012.
CA 60-day OK · 51d
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.