HackingProfessional ServicesProfessional ServicesStolen CredentialsTargetedIdentity (basic)LowContained

Dan Clasby Company, CPAS

bd_12d0d638db3dd586 · schema v1 · pii pii-v1

Severity

Low

Discovered

Sep 3, 2025

Filed

Dec 26, 2025

To disclose

16 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

67%

Full breach record for Dan Clasby Company, CPAS →

Dan Clasby Company, CPAS notified Vermont AG on 2025-12-26 of a data security incident discovered on 2025-09-03. Unauthorized access to certain files containing personal information (name and variable data elements) occurred. The firm engaged cybersecurity experts, reviewed affected files, and is offering 12-24 months of TransUnion identity protection services.

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Vermont clock✗ VT AG >45 bday16 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

discovery → filing · 16 weeks / 114 days

Sep 3, 2025

Discovered

Dec 26, 2025

Filed

vs. sector median

2 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

New Hampshire State AGbd_2d656db346150f002025-12-29 · +3dVerified
Massachusetts State AGbd_64c3750e084bda002025-12-30 · +4dVerified

Name: Dan Clasby Company, CPAS
norm: dan clasby company cpas

Name: Dan Clasby Company, CPAS
norm: dan clasby company cpas
Industry: Professional Servicesllm

Discovered: Sep 3, 2025
Materiality determined: —
Notification sent: Dec 26, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Engaged independent cybersecurity experts to assist with the process
Undertook a comprehensive review of those files
Offering complimentary identity protection services through TransUnion
Changes made: Implemented measures to enhance security and minimize the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 weeks(114 days from discovery to filing)
Compliance flags: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Vermont State AGDec 26 · first · this page

New Hampshire State AG+3d

Massachusetts State AG+4d

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.

Source URL: https://ago.vermont.gov/document/2025-12-26-dan-clasby-company-cpas-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 26, 2025
Raw hash: 4f05cf24aaee891de15196eb29d6052355e6f0c530f442cd8e368fef08451d13

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityDan Clasby Company, CPAS

Victim entityDan Clasby Company, CPAS

Incidentdiscovered Sep 3, 2025

Stated responseEngaged independent cybersecurity experts to assist with the process

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov