One linked filing — more sources may join as they report · filed Oct 28, 2013. View entity profile → Other incidents for this victim →
incident inc_a8672bc362a646d2 · 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
Mar 1, 2013 → Apr 15, 2013
When the intrusion reportedly occurred, per the linked filings
Apr 2, 2013
Reported by CALIFORNIA AG filing
Dun & Bradstreet notified California AG that a criminal cyberattack in March-April 2013 resulted in unauthorized access to a commercial database. Exposed data included names and business identification numbers, potentially including Social Security Numbers. The incident is contained, and 12 months of identity protection was provided 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.