HackingProfessional ServicesProfessional ServicesPhishingStolen CredentialsTargetedCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)MediumContained

Knox McLaughlin Gornall & Sennett PC

bd_9dba301b3923e666 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 14, 2025

Filed

Oct 7, 2025

To disclose

21 weeks

Affected · nationwide

8821 in this filing

Linked

4 filings

Confidence

66%

Full breach record for Knox McLaughlin Gornall & Sennett PC →

Knox McLaughlin Gornall & Sennett PC reported an external system breach (hacking) on May 14, 2025, affecting 882 individuals. Unauthorized access to an employee's email account occurred on May 19, 2025, exposing names, SSNs, driver's license numbers, and medical information. The firm engaged cybersecurity specialists and offered 12 months of credit monitoring.

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Maine clockDiscovered May 14, 2025 → Filed with AG Oct 7, 2025146d ✗ ME AG >90d21 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

May 19, 2025

Begins

Oct 7, 2025

Filed

vs. sector median

+2 wks slower

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

Vermont State AGbd_7d8ac106361b59de2025-10-07Verified
New Hampshire State AGbd_2d23f22a176fe23c2025-10-08 · +1dVerified
Montana State AGbd_d1c1c06c6d0484812025-10-08 · +1dVerified by operator

Name: Knox McLaughlin Gornall & Sennett PC
norm: knox mclaughlin gornall sennett

Name: Knox McLaughlin Gornall & Sennett PC
norm: knox mclaughlin gornall sennett
Industry: Professional Servicesllm

Discovered: May 14, 2025
Breach occurred: May 19, 2025
Materiality determined: —
Notification sent: Oct 7, 2025
Affected individuals: 882state + nationwide
Data types: Identity (basic)Government IDHealth (basic)
Data elements: Social Security numberMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: Engaged cybersecurity specialists to assist with the incident response
Worked with a third-party vendor to undertake a comprehensive review of the employee's mailbox
Providing access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing proactive fraud assistance
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: 21 weeks(146 days from discovery to filing)
Compliance flags: ME AG >90d · 146dME resident >60d · 146d
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: May 14, 2025
→ Filed with AG: Oct 7, 2025
146d 90 days ME AG >90d
Maine
Discovered: May 14, 2025
→ Notified: Oct 7, 2025
146d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 14, 2025 → Filed with AG: Oct 7, 2025	146d	90 days	ME AG >90d
Maine	Discovered: May 14, 2025 → Notified: Oct 7, 2025	146d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Vermont State AGOct 7 · first

Maine State AGOct 7 · first · this page

New Hampshire State AG+1d

Montana State AG+1d

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-a1252b4f8318/92972e25-3373-450e-b91c-1b333e381f3f.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 7, 2025
Raw hash: 92997d0d91889c54c78b93a4d3a74d33206f09080a84bad404d856ef7840c3e1

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityKnox McLaughlin Gornall & Sennett PC

Victim entityKnox McLaughlin Gornall & Sennett PC

Incidentdiscovered May 14, 2025

Stated responseEngaged cybersecurity specialists to assist with the incident response

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov