Clustered 4 filings across 4 jurisdictions · filed Sep 10, 2025. View entity profile → Other incidents for this victim →
incident inc_248d3e8df6b54dc4 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
IN MT NH VT
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
all State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Aug 5, 2025
When the intrusion reportedly occurred, per the linked filings
Aug 5, 2025
Reported by VERMONT AG, NEW HAMPSHIRE AG filings
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.
Cliff Viessman, Inc. notified consumers of a cybersecurity event discovered on August 5, 2025, where an unauthorized party accessed its IT network and copied files containing names. The company engaged forensic specialists, secured its network, and is offering 12 months of credit monitoring services to affected individuals.
Cliff Viessman, Inc. notified the New Hampshire Attorney General of a cybersecurity event detected on August 5, 2025. An unauthorized party accessed systems and copied files containing names, Social Security numbers, and driver's license numbers. Total affected individuals: 3,637 (2 NH residents). CVI engaged forensic specialists, secured systems, and provided 12 months of credit monitoring.
Affected (this filing): 3,637
Cliff Viessman, Inc reported a data breach to the Montana Attorney General. The breach was reported on 2025-09-10. The breach occurred on 08/05/2025. 3 Montana residents were affected.
Affected (this filing): 3
Cliff Viessman Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2025-08-05 and was reported on 2025-09-10. 14 Indiana residents were affected. 3,637 individuals affected in total.
Affected (this filing): 3,637