Social EngineeringFinancial ServicesFinancePhishingCustomer Data InvolvedIdentity (basic)Government IDMediumContained

EFS Advisors LLC

bd_020d2b992b9fea99 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Sep 17, 2024

Filed

Mar 26, 2025

To disclose

—

Affected

Not disclosed

Linked

3 filings

Confidence

66%

Full breach record for EFS Advisors LLC →2 incidents on file

EFS Advisors LLC, an investment advisory firm, notified clients of a data security incident involving unauthorized access to email accounts. The breach, detected on September 17, 2024, potentially exposed names, Social Security numbers, and dates of birth. EFS engaged forensic investigators, secured accounts, and provided 12 months of free credit monitoring via TransUnion. No identity theft has been reported.

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Incident timeline

Sep 17, 2024

Discovered

Mar 26, 2025

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_afae5793183386752025-04-01 · +6dVerified
Maine State AGbd_806dabefe2a338402025-04-02 · +7dCandidate

Name: EFS Advisors LLC
norm: efs advisors

Name: EFS Advisors LLC
norm: efs advisors
Industry: Financial Servicesllm

Discovered: Sep 17, 2024
Materiality determined: —
Notification sent: Mar 26, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: Moved quickly to secure the email accounts
Launched a thorough investigation
Investigation was performed with the help of independent IT security and forensic investigators
Reviewed our technical safeguards
Implemented enhanced security measures
Providing you with access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
Changes made: Reviewed our technical safeguards
Implemented enhanced security measures
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Nebraska State AGMar 26 · first · this page

Massachusetts State AG+6d

Maine State AG+7d

Pattern: first filing Mar 26 (NE), last Apr 2 (ME) — a 7-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://nebraska.gov/ago/data-breach/documents/5d8ddd35-8c7f-4d26-b222-0e91465d4b38.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 26, 2025
Raw hash: f8df1830b59f275371514015563986f71055e28c9ce68045eebb5ace7af1cafc

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityEFS Advisors LLC

Victim entityEFS Advisors LLC

Incidentdiscovered Sep 17, 2024

Stated responseMoved quickly to secure the email accounts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov