One linked filing — more sources may join as they report · filed Feb 19, 2025. View entity profile → Other incidents for this victim →
incident inc_dbd8811904be4def · 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 · Identity (basic) · Government ID
ME
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Nov 21, 2024
When the intrusion reportedly occurred, per the linked filings
Jan 6, 2025
Reported by MAINE AG filing
Great Plains Bank Corporation (Aberdeen, SD) suffered a ransomware attack ~Nov 21, 2024, discovered Jan 6, 2025. Unauthorized party may have accessed names and Social Security numbers. 7,767 individuals affected total; 1 Maine resident. FBI notified; cybersecurity specialists engaged. Consumer notifications sent Feb 19, 2025; 12-month Experian IdentityWorks monitoring offered.
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.