GLOBALClaimed by RyukFirst sighting
Posted to leak site May 18, 2021bd_31700e5fe96a669d
Clustered 2 filings across 2 jurisdictions · filing window May 18, 2021 → Dec 30, 2021. View entity profile → Other incidents for this victim →
incident inc_e14fb95cb68e4b10 · merge_method human · confidence 100%
Discovered → first regulatory filing
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Discovery variance · Materiality delta · SEC filing delay — no SEC 8-K in this cluster; needs two dated filings.
CA
Leak Site · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jan 1, 2021 → Jun 3, 2021
When the intrusion reportedly occurred, per the linked filings
Jun 6, 2021
Reported by CALIFORNIA AG filing
Visalia Unified School District (California) notified affected individuals of unauthorized access to certain email accounts between January 1, 2021, and June 3, 2021. The breach exposed names and sensitive data, including government identifiers and medical information, for both staff and students/minors. VUSD offered complimentary credit monitoring via IDX and implemented enhanced security measures and employee training. No actual misuse was identified at the time of notification.
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.