HackingProfessional ServicesProfessional ServicesSupply Chain (3P Vendor)Data ExfiltratedIdentity (basic)Government IDFinancial accountMediumActive

Heard, McElroy, & Vestal

bd_36e97f10f3db9dc6 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 13, 2023

Filed

Oct 10, 2023

To disclose

34 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

65%

Full breach record for Heard, McElroy, & Vestal →4 incidents on file

Heard, McElroy, & Vestal LLC (HMV), a law firm, notified clients of a data breach discovered on Feb 13, 2023. An unknown actor accessed client information stored on a third-party software program. Affected data included names, DOBs, SSNs, and financial account numbers. HMV notified the FBI, IRS, and State Tax Administrators, and offered 12 months of credit monitoring via Experian IdentityWorks.

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Vermont clock✗ VT AG >45 bday34 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 · 34 weeks / 239 days

Feb 13, 2023

Discovered

Oct 10, 2023

Filed

vs. sector median

+15 wks slower

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

Montana State AGbd_5f5491f5f2c048882023-10-10Candidate
Massachusetts State AGbd_c8b98be9b19e9ca12023-10-10Verified

Name: Heard, McElroy, & Vestal
norm: heard mcelroy vestal
Industry: professional_services

Name: Heard, McElroy, & Vestal
norm: heard mcelroy vestal
Industry: professional_services
Industry: Professional Servicesllm

Discovered: Feb 13, 2023
Materiality determined: —
Notification sent: Jul 11, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Regulator citations: Notified the Federal Bureau of Investigation (FBI)Notified the Internal Revenue Service (IRS)Notified State Tax Administrators
Initial access: supply_chain

During the incident: Enlisted the assistance of cybersecurity and other technical experts to investigate
Undertook a thorough review of the information potentially involved
Immediately notified the Federal Bureau of Investigation (FBI), the Internal Revenue Service (IRS), and the State Tax Administrators
Offering complimentary access to Experian IdentityWorks for 12 months
Changes made: Taken immediate steps to evaluate and improve the security of our systems
Will continue to evaluate additional protections that can be put into place to supplement our existing security policies and procedures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 34 weeks(239 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 ↗

Montana State AGOct 10 · first

Massachusetts State AGOct 10 · first

Vermont State AGOct 10 · 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/2023-10-10-heard-mcelroy-vestal-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 10, 2023
Raw hash: c9c7edde5c1fb10697b96acff00d8ace59ac82cc315fb723ebc641f4167e5fc3

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityHeard, McElroy, & Vestal

Victim entityHeard, McElroy, & Vestal

Incidentdiscovered Feb 13, 2023

Stated responseEnlisted the assistance of cybersecurity and other technical experts to investigate

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov