HackingProfessional ServicesProfessional ServicesVulnerability ExploitCapture Stored DataData ExfiltratedIdentity (basic)Government IDFinancial accountFinancialMediumContained

TKH Group

bd_90a7be27efc13043 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 21, 2025

Filed

Jan 15, 2026

To disclose

17 weeks

Affected

Not disclosed

Linked

6 filings

Confidence

66%

Full breach record for TKH Group →

TKH Group, PC notified Vermont AG of a September 21, 2025 unauthorized network access incident exposing client PII, SSNs, and financial data. TKH engaged forensic investigators, notified authorities, and offered credit monitoring. No identity theft reported. Count undisclosed.

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Vermont clock✗ VT AG >45 bday17 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 · 17 weeks / 116 days

Sep 21, 2025

Discovered

Jan 15, 2026

Filed

vs. sector median

1 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

Nebraska State AGbd_1f584e0058c4c2302026-01-15Verified
Indiana State AGbd_4a5c35a791666f7c2026-01-15Candidate
Indiana State AGbd_88b1ef0238001f252026-01-15Candidate
New Hampshire State AGbd_f93f58455746d3c32026-01-15Verified

Show 1 more filing ↓

Maine State AGbd_fbe015afff29d7b62026-01-15Verified

Name: TKH Group
norm: tkh group

Name: TKH Group
norm: tkh group
Industry: Professional Servicesllm

Discovered: Sep 21, 2025
Materiality determined: —
Notification sent: Jan 15, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial accountFinancial
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1119 Automated Collection
Threat actor: External
Regulator citations: reported the incident to state and federal authorities
Initial access: exploit_public_facing

During the incident: Initiated a cybersecurity incident response effort involving the use of third-party cybersecurity and digital forensics investigators
Reported the incident to state and federal authorities
Reported the incident to major credit reporting agencies
Providing individuals whose information may have been affected with access to Single Bureau Credit Monitoring services at no charge
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(116 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 · 6 filings · 5 states

View merged incident ↗

Nebraska State AGJan 15 · first

Indiana State AGJan 15 · first

New Hampshire State AGJan 15 · first

Maine State AGJan 15 · first

Vermont State AGJan 15 · 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.

Source URL: https://ago.vermont.gov/document/2026-01-15-tkh-group-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 15, 2026
Raw hash: cfae684b01d4e3d3d622a6b5f19fa8dc302b2f950b139e5142f7bf0429b8de1a

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityTKH Group

Victim entityTKH Group

Incidentdiscovered Sep 21, 2025

Stated responseInitiated a cybersecurity incident response effort involving the use of third-party cybersecurity and digital forensics investigators

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov