One linked filing — more sources may join as they report · filed Aug 30, 2021. View entity profile → Other incidents for this victim →
incident inc_6c8813dd90614eb2 · 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 · Financial account
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jan 1, 2021 → Mar 4, 2021
When the intrusion reportedly occurred, per the linked filings
Jan 29, 2021
Reported by CALIFORNIA AG filing
Mater Dei High School experienced a phishing incident in late January 2021, leading to unauthorized access of two employee email accounts from Jan 1 to Mar 4, 2021. The breach exposed sensitive PII including SSNs, driver's licenses, health info, and financial data. The school engaged forensic investigators, reset credentials, and offered 12 months of identity monitoring.
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.