HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedTargetedGovernment IDIdentity (basic)Financial accountMediumContained

Cronin, Hanley, Van Zile, & Lorenzo, LLC

bd_1e65fa6d185e636e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 1, 2021

Filed

Jul 7, 2021

To disclose

14 weeks

Affected

1state residents only

Linked

2 filings

Confidence

67%

Full breach record for Cronin, Hanley, Van Zile, & Lorenzo, LLC →

Cronin, Hanley & VanZile, LLC (CHV) notified the New Hampshire Attorney General of a data security incident in late April 2021 involving fraudulent tax returns filed using CHV's Electronic Filing Identification Number (EFIN). One New Hampshire resident was affected. CHV hired forensic investigators, reset passwords, implemented MFA, and obtained a new EFIN. Affected individuals received 12 months of credit monitoring and identity restoration services through IDX.

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Incident timeline

discovery → filing · 14 weeks / 97 days

Apr 1, 2021

Discovered

Jul 7, 2021

Filed

vs. sector median

5 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_bb3a0953f45281d12021-07-06 · +1dVerified

Name: Cronin, Hanley, Van Zile, & Lorenzo, LLC
norm: cronin hanley van zile lorenzo
Domain: chvfirm.com

Name: Cronin, Hanley, Van Zile, & Lorenzo, LLC
norm: cronin hanley van zile lorenzo
Domain: chvfirm.com
Industry: Professional Servicesllm

Discovered: Apr 1, 2021
Materiality determined: —
Notification sent: Jul 6, 2021
Affected individuals: 1state-resident count only
Data types: Government IDIdentity (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney GeneralWorking with the IRS to produce a list of all clients and their dependents
Initial access: valid_credentials

During the incident: Hired an independent computer forensic investigator
Notified all impacted individuals
Offered twelve (12) months of credit monitoring and identity restoration services
Reset all passwords
Working with its forensic investigator to determine other ways they can further enhance their cybersecurity protocols
Working with the IRS to produce a list of all clients and their dependents
Changes made: Conducted a system wide password reset
Implemented multi-factor authentication on all accounts
Obtained a new EFIN
Opted into the Practitioner Relief Program with the IRS
Invested in new servers and technology
Works with an external IT company that provides 24/7 monitoring of servers and computers
Uses a secure mail service provider for correspondence
Uses a secure portal directly connected with tax software provider Intuit Lacerte
Has antivirus installed on all servers and computers
Trains employees on recognizing and responding to cybersecurity threats
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(97 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGJul 6 · first

New Hampshire State AG+1d · 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/cronin-hanley-vanzile-20210707.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 7, 2021
Raw hash: 9d67b002a0297018dae457c4a4c497740df3baa78974acafb03c1dded80a2162

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCronin, Hanley, Van Zile, & Lorenzo, LLC

Victim entityCronin, Hanley, Van Zile, & Lorenzo, LLC

Incidentdiscovered Apr 1, 2021

Stated responseHired an independent computer forensic investigator

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov