Social EngineeringProfessional ServicesProfessional ServicesPhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountMediumContained

Brinster & Bergman, LLP

bd_7d3214001fc53f06 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 21, 2022

Filed

May 15, 2022

To disclose

24 days

Affected

2state residents only

Linked

4 filings

Confidence

65%

Full breach record for Brinster & Bergman, LLP →

Brinster & Bergman, LLP notified clients of unauthorized access to personal information (names, SSNs, financial accounts) between Jan 10-20, 2022, discovered April 21, 2022. The breach resulted in fraudulent tax filings. The firm engaged forensic investigators, changed credentials, and offered credit monitoring. Rhode Island residents were impacted.

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Incident timeline

undetected · 101 days

discovery → filing · 24 days

Jan 10, 2022

Begins

Apr 21, 2022

Discovered

May 15, 2022

Filed

vs. sector median

14 wks faster

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

Massachusetts State AGbd_175becfbb5c059062022-05-18 · +3dVerified
Indiana State AGbd_72e2cbebfd5a61732022-05-18 · +3dVerified
New Hampshire State AGbd_d235aead313d632a2022-05-23 · +8dVerified

Name: Brinster & Bergman, LLP
norm: brinster bergman

Name: Brinster & Bergman, LLP
norm: brinster bergman
Industry: Professional Servicesllm

Discovered: Apr 21, 2022
Breach occurred: Jan 10, 2022 – Jan 20, 2022
Undetected for: 101 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 18, 2022
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified the IRS
Initial access: phishing_link

During the incident: Notified the IRS
Changed electronic filing identification number
Changed passwords
Engaged cyber security professionals
Offering complimentary membership in identity theft protection services through IDX
Changes made: Continually evaluate and modify practices to enhance security and privacy
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 · 4 filings · 4 states

View merged incident ↗

Montana State AGMay 15 · first · this page

Massachusetts State AG+3d

Indiana State AG+3d

New Hampshire State AG+8d

Pattern: first filing May 15 (MT), last May 23 (NH) — a 8-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/Brinster-Bergman-LLP-Consumer-Notification-Letter.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 15, 2022
Raw hash: 9e8510efc578db20027757ae2f064ac51b760c4a63fd4163b321beda57e11baf

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityBrinster & Bergman, LLP

Victim entityBrinster & Bergman, LLP

Incidentdiscovered Apr 21, 2022

Stated responseNotified the IRS

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov