Social EngineeringProfessional ServicesProfessional ServicesPhishingStolen CredentialsCustomer Data InvolvedTargetedPIICredentialsLowContained

CBIZ Accounting, Tax & Advisory of Utah

bd_5499436a6e80cc00 · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 30, 2020

Filed

Mar 30, 2021

To disclose

13 weeks

Affected

12state residents only

Linked

4 filings

Confidence

65%

Full breach record for CBIZ Accounting, Tax & Advisory of Utah →

CBIZ Accounting, Tax & Advisory of Utah, LLC notified Montana residents of unauthorized access to an employee email account on December 30, 2020. The incident involved phishing leading to credential compromise. Personal information was potentially accessed. Kroll provided one year of identity monitoring.

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Incident timeline

discovery → filing · 13 weeks / 90 days

Dec 30, 2020

Begins

Dec 30, 2020

Discovered

Mar 30, 2021

Filed

vs. sector median

5 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_9d745b0e863163d22021-03-30Verified
New Hampshire State AGbd_dcfdb7d7e735a80a2021-03-30Verified
Indiana State AGbd_eb816cf6d06e382f2021-03-30Verified

Name: CBIZ Accounting, Tax & Advisory of Utah
norm: cbiz accounting tax advisory of utah

Name: CBIZ Accounting, Tax & Advisory of Utah
norm: cbiz accounting tax advisory of utah
Industry: Professional Servicesllm

Discovered: Dec 30, 2020
Breach occurred: Dec 30, 2020
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 12state-resident count only
Data types: PIICredentials
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: External
Initial access: phishing_link

During the incident: Secured the account
Began an investigation
Hired a computer forensic firm to assist
Searched the contents of the account
Engaged Kroll to provide identity monitoring
Changes made: Implemented additional safeguards and technical security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(90 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 ↗

Massachusetts State AGMar 30 · first

New Hampshire State AGMar 30 · first

Indiana State AGMar 30 · first

Montana State AGMar 30 · 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://dojmt.gov/wp-content/uploads/CBIZ-Notif.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 30, 2021
Raw hash: 4035baab3fab545f315d235ae425f6319a20723f6229930a060593ec9b6d1406

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCBIZ Accounting, Tax & Advisory of Utah

Victim entityCBIZ Accounting, Tax & Advisory of Utah

Incidentdiscovered Dec 30, 2020

Stated responseSecured the account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov