One linked filing — more sources may join as they report · filed Aug 31, 2021. View entity profile → Other incidents for this victim →
incident inc_a89cc9571bd94be5 · 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.
PII · Government ID
ME
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Apr 22, 2021
When the intrusion reportedly occurred, per the linked filings
Apr 22, 2021
Reported by MAINE AG filing
Guilderland Central School District reported a ransomware incident that occurred and was discovered on April 22, 2021. The breach affected one Maine resident, whose Social Security Number was compromised. The district notified the affected individual on August 31, 2021, and offered 24 months of identity theft protection services through Experian.
Affected (this filing): 1
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.