Social EngineeringProfessional ServicesProfessional ServicesPhishingCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancialMediumActive

Baylor Evnen, LLP

bd_fd2ba4a7fde37ac5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 3, 2020

Filed

Apr 20, 2020

To disclose

17 days

Affected

1state residents only

Confidence

65%

Full breach record for Baylor Evnen, LLP →

Baylor Evnen, LLP notified Montana AG of an email spoofing attack on April 3, 2020. Attackers impersonated an employee to obtain 2019 W-2 forms from current/former 2019 employees. Data exposed included names, addresses, SSNs, and wages. The firm engaged Kroll for 12 months of identity protection, notified the FBI and IRS, and is assessing IT systems.

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Incident timeline

discovery → filing · 17 days

Apr 3, 2020

Begins

Apr 3, 2020

Discovered

Apr 20, 2020

Filed

vs. sector median

15 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Baylor Evnen, LLP
norm: baylor evnen

Name: Baylor Evnen, LLP
norm: baylor evnen
Industry: Professional Servicesllm

Discovered: Apr 3, 2020
Breach occurred: Apr 3, 2020
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 5, 2020
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified FBIReporting incident to the IRSWill be notifying relevant state Attorneys General
Initial access: phishing_link

During the incident: Arranged for Kroll to protect identity for 12 months at no cost
Notified federal law enforcement (FBI)
Reporting incident to the IRS
Will be notifying any necessary state Attorneys General
Taking steps to notify appropriate state taxing authorities
IT team with assistance from IT forensics and cyber-specialists assessing security and soundness of systems
Changes made: Working to implement additional safeguards
Providing additional mandatory training to employees on safeguarding privacy and security of information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 days(17 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/OCP/Breach-NotificationDetails-158.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 20, 2020
Raw hash: 8932fbc0243573fbb669bd5cb59b804b0ff17527793e9d86e3534e2a6f7283f1

Reporting entityBaylor Evnen, LLP

Victim entityBaylor Evnen, LLP

Incidentdiscovered Apr 3, 2020

Stated responseArranged for Kroll to protect identity for 12 months at no cost

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov