One linked filing — more sources may join as they report · filed Jun 11, 2020. View entity profile → Other incidents for this victim →
incident inc_2b786e8ec3f849e6 · merge_method deterministic
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.
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Nov 4, 2019
When the intrusion reportedly occurred, per the linked filings
Mt. Diablo Unified School District filed an amended data breach notification with the California Attorney General. The breach occurred on November 4, 2019. The provided source document contains only the filing metadata and an empty attachment placeholder; specific details regarding data types, affected counts, and incident nature are not available in the provided text.
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.