HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountFinancialHighContained

TKH Group

bd_fbe015afff29d7b6 · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 21, 2025

Filed

Jan 15, 2026

To disclose

17 weeks

Affected · nationwide

3,1802 in this filing

Linked

6 filings

Confidence

66%

Full breach record for TKH Group →

TKH Group, PC, a financial services firm, reported an internal system breach on September 21, 2025, affecting 3,180 individuals. The incident involved unauthorized access to personal information including names, SSNs, DOBs, and financial data. TKH engaged third-party forensic investigators, notified authorities, and offered 12 months of credit monitoring via Epiq.

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Maine clockDiscovered Sep 21, 2025 → Filed with AG Jan 15, 2026116d ✗ ME AG >90d17 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 17 weeks / 116 days

Sep 21, 2025

Begins

Sep 21, 2025

Discovered

Jan 15, 2026

Filed

vs. sector median

+8 wks slower

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
Vermont State AGbd_90a7be27efc130432026-01-15Verified

Show 1 more filing ↓

New Hampshire State AGbd_f93f58455746d3c32026-01-15Verified

Name: TKH Group
norm: tkh group
Industry: Financial Services

Name: TKH Group
norm: tkh group
Industry: Financial Services
Industry: Financial Servicesllm

Discovered: Sep 21, 2025
Breach occurred: Sep 21, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 15, 2026
Affected individuals: 3,180state + nationwide
Data types: Identity (basic)Government IDFinancial accountFinancial
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Reported the incident to state and federal authoritiesReported the incident to major credit reporting agencies
Initial access: valid_credentials

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
Provided individuals whose information may have been affected with access to Single Bureau Credit Monitoring services at no charge
Changes made: Secured its systems
Prevented further unauthorized access
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(116 days from discovery to filing)
Compliance flags: ME AG >90d · 116d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Sep 21, 2025
→ Filed with AG: Jan 15, 2026
116d 90 days ME AG >90d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 21, 2025 → Filed with AG: Jan 15, 2026	116d	90 days	ME AG >90d

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

Vermont State AGJan 15 · first

New Hampshire State AGJan 15 · first

Maine 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/b479e150-7963-4860-b885-fc576b3d3d58.html
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: 635a7fa96bbf6b2d8b539c4486f2b7f1253771b854c7f0b50c234aeda65d1b5b

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

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov