Vermont State Colleges (which consists of Castleton University, Northern Vermont University, and Vermont Technical College) data breach (2021) · DisclosureLens
Confirmed breach. Intrusion May 1, 2020–May 31, 2020, discovered Jul 16, 2020 — the first regulatory filing landed 223 days later (flagged late). 289 individuals reported across the linked filings.
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.
Regulatory clocksMaine✗ ME AG >90d · 223dFull clock table in Litigation Timeline
State AGConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedmoderate sensitivity
Affected (total reported)
289
Data types
2
Identity (basic) · Financial account
Jurisdictions
1
ME
Linked filings
1
all State AG
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Breach window
May 1, 2020 → May 31, 2020
When the intrusion reportedly occurred, per the linked filings
Vermont State Colleges reported a ransomware incident involving its vendor, Blackbaud Inc., discovered in July 2020. The breach affected 289 individuals, including one Maine resident. Compromised data included names and financial account numbers. Written notification was sent to affected individuals in February 2021.
Affected (this filing): 289
ME AG >90d · 223dME resident >180d · 222d
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.