Clustered 2 filings across 2 jurisdictions · filing window Jan 6, 2022 → Apr 20, 2022. View entity profile → Other incidents for this victim →
incident inc_3aaab4668b3d46e0 · 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.
Government ID · Identity (basic)
ME
Leak Site · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Sep 10, 2021 → Sep 14, 2021
When the intrusion reportedly occurred, per the linked filings
Feb 17, 2022
Reported by MAINE AG filing
Manhasset Union Free School District experienced an external system breach (hacking) between September 10 and 14, 2021, discovered on February 17, 2022. The incident affected 5,709 individuals, including 3 Maine residents. Personal information compromised included names and Social Security Numbers. The District provided written notification and offered one year of credit monitoring and identity theft protection services through IDX.
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.
Affected (this filing): 5,709