DisclosureLens
HackingRetail & ConsumerRetailStolen CredentialsData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

Cliff Viessman, Inc

bd_320845cb79cca05a · schema v1 · pii pii-v1

Severity

High

Discovered

Aug 5, 2025

Filed

Sep 10, 2025

To disclose

5 weeks

Affected · nationwide

3,6372 in this filing

Linked

6 filings

Confidence

68%
Full breach record for Cliff Viessman, Inc

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.

Incident timeline

discovery → filing · 5 weeks / 36 days

Aug 5, 2025

Discovered

Sep 10, 2025

Filed

vs. sector median

3 wks faster

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Show 1 more filing

Filing propagation · 6 filings · 6 states

View merged incident ↗
Vermont State AGSep 10 · first
Nebraska State AGSep 10 · first
Montana State AGSep 10 · first
Massachusetts State AGSep 10 · first
Indiana State AGSep 10 · first
New Hampshire State AGSep 10 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.