One linked filing — more sources may join as they report · filed May 3, 2023. View entity profile → Other incidents for this victim →
incident inc_724b3c4c81ce4f29 · 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.
Government ID · Identity (basic)
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Nov 7, 2021
When the intrusion reportedly occurred, per the linked filings
Nov 7, 2021
Reported by CALIFORNIA AG filing
Delano Union School District detected unusual activity on November 7, 2021. An investigation determined that an unknown actor may have accessed or acquired files containing names and Social Security numbers. The district engaged cybersecurity experts, secured the environment, and notified the FBI. Affected individuals were offered complimentary identity protection services.
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.