HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedTargetedIdentity (basic)Government IDMediumContained

Heier Weisbrot & Bernstein, LLC

bd_3ba1077ca1c9ea69 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 27, 2024

Filed

Aug 7, 2024

To disclose

6 weeks

Affected

3state residents only

Linked

5 filings

Confidence

65%

Full breach record for Heier Weisbrot & Bernstein, LLC →

Heier Weisbrot & Bernstein, LLC notified the NH Attorney General of a cybersecurity incident where an unauthorized actor accessed tax software between June 22-26, 2024. The actor attempted to file fraudulent tax returns for 3 NH residents. The firm detected the attempt on June 27, 2024, engaged a third-party cybersecurity firm, and mailed notifications on August 7, 2024, offering credit monitoring services.

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Incident timeline

undetected · 5 days

discovery → filing · 6 weeks / 41 days

Jun 22, 2024

Begins

Jun 27, 2024

Discovered

Jul 29, 2024

Scope determined

Aug 7, 2024

Filed

vs. sector median

13 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Vermont State AGbd_4c8ff54a915235c52024-08-07Verified
Maine State AGbd_64540db5af03b8b12024-08-07Candidate
Massachusetts State AGbd_709d99aa296e50a42024-08-07Verified
Indiana State AGbd_b20f0e90241b49432024-08-07Verified

Name: Heier Weisbrot & Bernstein, LLC
norm: heier weisbrot bernstein
Domain: hwb-cpa.com

Name: Heier Weisbrot & Bernstein, LLC
norm: heier weisbrot bernstein
Domain: hwb-cpa.com
Industry: Professional Servicesllm

Discovered: Jun 27, 2024
Breach occurred: Jun 22, 2024 – Jun 26, 2024
Undetected for: 5 daysoccurrence → discovery
Materiality determined: Jul 29, 2024
Notification sent: Aug 7, 2024
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Notified Attorney General John FormellaReported fraudulent returns to the IRS
Initial access: valid_credentials

During the incident: Launched an investigation with the assistance of a third-party cybersecurity firm
Worked with the IRS to ensure that any other attempted fraudulent returns are not processed
Commenced mailing notifications to the New Hampshire residents via U.S. First-Class mail
Offering complimentary credit monitoring, fraud consultation, and identity theft restoration services through IDX
Changes made: Taking steps to enhance the security of its computer systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(41 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Vermont State AGAug 7 · first

Maine State AGAug 7 · first

Massachusetts State AGAug 7 · first

Indiana State AGAug 7 · first

New Hampshire State AGAug 7 · 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://mm.nh.gov/files/uploads/doj/remote-docs/heier-weisbrot-bernstein-20240807.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 7, 2024
Raw hash: 9643e16c3a37187b8ada80dd1603afc9e1f5834fc8f4d88c7a2add9fc85288f6

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityHeier Weisbrot & Bernstein, LLC

Victim entityHeier Weisbrot & Bernstein, LLC

Incidentdiscovered Jun 27, 2024

Stated responseLaunched an investigation with the assistance of a third-party cybersecurity firm

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov