Social EngineeringFinancial ServicesFinancePhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDMediumContained

EFS Advisors LLC

bd_806dabefe2a33840 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 6, 2025

Filed

Apr 2, 2025

To disclose

8 weeks

Affected

1state residents only

Linked

3 filings

Confidence

66%

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

EFS Advisors LLC, an investment advisory firm, reported a data breach affecting 1 Maine resident. Unauthorized access to email accounts occurred between September 17 and 23, 2024, likely via phishing. Personal information including names, SSNs, and/or DOBs was exposed. The breach was discovered on February 6, 2025, and notifications were sent on March 26, 2025, offering credit monitoring.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Feb 6, 2025 → Filed with AG Apr 2, 202555d ⏱ ME AG >30d8 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 142 days

discovery → filing · 8 weeks / 55 days

Sep 17, 2024

Begins

Feb 6, 2025

Discovered

Apr 2, 2025

Filed

vs. sector median

on median

This filing is one of 3 filings 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 · +1dVerified
Nebraska State AGbd_020d2b992b9fea992025-03-26 · +7dVerified

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

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

Discovered: Feb 6, 2025
Breach occurred: Sep 17, 2024 – Sep 23, 2024
Undetected for: 142 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 26, 2025
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: phishing_link

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

Time to disclose: 8 weeks(55 days from discovery to filing)
Compliance flags: ME AG >30d · 55d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Feb 6, 2025
→ Filed with AG: Apr 2, 2025
55d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Feb 6, 2025 → Filed with AG: Apr 2, 2025	55d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Nebraska State AGMar 26 · first

Massachusetts State AG+6d

Maine State AG+7d · this page

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/e9052fce-ddc2-40f8-bdbe-1e47ee045f52.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 2, 2025
Raw hash: 789dacda857d4d75a76faae31be72728b4912a0203618cf119de255e472d5c60

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityEFS Advisors LLC

Victim entityEFS Advisors LLC

Incidentdiscovered Feb 6, 2025

Stated responseMoved quickly to secure the email accounts

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov