HackingStolen CredentialsData ExfiltratedCustomer Data InvolvedIDENTITY_GOVERNMENTIDENTITY_BASICHighContained
Cliff Viessman, Inc
bd_320845cb79cca05a · schema v1 · pii pii-v1
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.
This filing is one of 4 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (3) · sorted by filing gap
- bd_2de4a46561dc0399Vermont State AGfiled 2025-09-10Verified
- bd_6a0be07d9d2a0689Montana State AGfiled 2025-09-10Candidate
- bd_9fa7938fd11a53daIndiana State AGfiled 2025-09-10Verified
Source provenance
- Source URL
- https://mm.nh.gov/files/uploads/doj/remote-docs/cliff-viessman-20250910.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Sep 10, 2025
- Raw hash
- 3b631fafd01c908d0d2b0b7f3548a28cb68ff907f29eb18756b0be0e65027eeb
Reporting entity
- Name
- Wilson, Elser, Moskowitz, Edelman & Dicker LLPnorm: wilson elser moskowitz edelman dicker
Victim entity
- Name
- Cliff Viessman, Incnorm: cliff viessman
Incident
- Discovered
- Aug 5, 2025
- Materiality determined
- —
- Notification sent
- Sep 10, 2025
- Affected individuals
- 3,637
- Data types
- IDENTITY_GOVERNMENTIDENTITY_BASIC
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
- Threat actor
- External
- Regulator citations
- Notified New Hampshire Attorney General Consumer Protection Bureau
- Initial access
- valid_credentials
Compliance
- Time to disclose
- 5 weeks(36 days from discovery to filing)
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.