Cliff Viessman, Inc
ent_5fecf37e305ab1f70deea94b
Disclosures
6
State AG · 6 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
3,637
nationwide · State AG NH
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Cliff Viessman, Inc
- Normalized
- cliff viessman— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (6)newest first
- Vermont State AGas victim2025-09-10
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.
- New Hampshire State AGas victim2025-09-10
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.
- Nebraska State AGas victim2025-09-10
Cliff Viessman, Inc. notified Nebraska residents of a data breach discovered on August 5, 2025, where an unauthorized party accessed systems and copied files containing names and personal information. The company engaged forensic specialists, secured the network, and provided 12 months of free credit monitoring and fraud assistance via Cyberscout/TransUnion. The breach was contained, and no misuse was known.
- Montana State AGas victim2025-09-10
Cliff Viessman, Inc. notified Montana residents of a cybersecurity event discovered on August 5, 2025, where an unauthorized party accessed systems and copied files containing names and personal information. The company engaged forensic specialists, secured its network, and is offering 12 months of free credit monitoring. No misuse has been confirmed.
- Massachusetts State AGas victim2025-09-10
Cliff Viessman, Inc. reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-09-10. 2 Massachusetts residents were affected.
- Indiana State AGas victim2025-09-10
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.