HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)Financial accountMediumContained

Bennett Thrasher LLP

bd_213063ba55cea1e1 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 6, 2018

Filed

Apr 30, 2018

To disclose

24 days

Affected

18state residents only

Linked

2 filings

Confidence

65%

Full breach record for Bennett Thrasher LLP →

Bennett Thrasher LLP notified Montana residents of a breach involving unauthorized access to a CCH-hosted portal used for tax document storage. Access occurred from June 15, 2017, to April 6, 2018. Compromised data included names, addresses, SSNs, and potentially health/financial info. The firm engaged forensic investigators and notified the FBI and IRS.

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Incident timeline

undetected · 295 days

discovery → filing · 24 days

Jun 15, 2017

Begins

Apr 6, 2018

Discovered

Apr 30, 2018

Filed

vs. sector median

14 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_1d377e986b86f0872018-05-04 · +4dVerified

Name: Bennett Thrasher LLP
norm: bennett thrasher

Name: Bennett Thrasher LLP
norm: bennett thrasher
Industry: Professional Servicesllm

Discovered: Apr 6, 2018
Breach occurred: Jun 15, 2017 – Apr 6, 2018
Undetected for: 295 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 30, 2018
Affected individuals: 18state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Financial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Working with the Federal Bureau of InvestigationWorking with the Internal Revenue Service
Third party: via Commerce Clearing House (CCH)
Initial access: valid_credentials

During the incident: Launched an investigation
Retained a leading IT forensics firm to assist in our review
Working with CCH to determine how the incident occurred
Working with the Federal Bureau of Investigation and the Internal Revenue Service in their respective ongoing investigations
Offering you a complimentary one-year membership in Experian Identity Works Credit 3B
Changes made: Requesting that CCH institute multi-factor authentication for access to their portal
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 days(24 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 ↗

Montana State AGApr 30 · first · this page

Massachusetts State AG+4d

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://dojmt.gov/wp-content/uploads/Bennett-Thrasher-LLP.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 30, 2018
Raw hash: d3c2552c0788f5f08783f057aff432349741ffc3677b53c6f8e40d01727772b4

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityBennett Thrasher LLP

Victim entityBennett Thrasher LLP

Incidentdiscovered Apr 6, 2018

Stated responseLaunched an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov