HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Mark Leyden & Associates, LLC

bd_f82fa2a5c8b2bf09 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 23, 2026

Filed

Mar 24, 2026

To disclose

29 days

Affected

1state residents only

Linked

4 filings

Confidence

66%

Full breach record for Mark Leyden & Associates, LLC →

Mark Leyden & Associates, LLC reported an external system breach (hacking) affecting one Maine resident. Unauthorized access to an email account occurred between May and October 2025. The breach was discovered on February 23, 2026, when it was determined that a resident's name and Social Security number were accessed. Notification was sent on March 24, 2026, including one year of credit monitoring.

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Maine clockDiscovered Feb 23, 2026 → Filed with AG Mar 24, 202629d ✓ ME AG ≤30d29 days 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 · 298 days

discovery → filing · 29 days

May 1, 2025

Begins

Feb 23, 2026

Discovered

Mar 24, 2026

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

Indiana State AGbd_0014e06b1dea16f82026-03-24Candidate
Massachusetts State AGbd_0ff7fe84cf3c680b2026-03-24Verified
New Hampshire State AGbd_9e8ceb361a3a9e892026-03-24Verified

Name: Mark Leyden & Associates, LLC
norm: mark leyden associates

Name: Mark Leyden & Associates, LLC
norm: mark leyden associates
Industry: Financial Servicesllm

Discovered: Feb 23, 2026
Breach occurred: May 1, 2025 – Oct 27, 2025
Undetected for: 298 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 24, 2026
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Filed notification with Maine Attorney General
Initial access: valid_credentials

During the incident: Offering one year, IDX, credit monitoring and identity theft protection services
Established a dedicated, toll-free call center for individuals to call with questions
Changes made: Taken steps to enhance existing security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 days(29 days from discovery to filing)
Compliance flags: ME AG ≤30d · 29d
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 23, 2026
→ Filed with AG: Mar 24, 2026
29d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Feb 23, 2026 → Filed with AG: Mar 24, 2026	29d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGMar 24 · first

Massachusetts State AGMar 24 · first

New Hampshire State AGMar 24 · first

Maine State AGMar 24 · 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/5436c107-c21b-41bc-b5f6-4d7f286f1886.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 24, 2026
Raw hash: 2f83de2b0fdecc917dd59135d9876bf1356226dcc30b3db0e8acbc15d74da55e

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMark Leyden & Associates, LLC

Victim entityMark Leyden & Associates, LLC

Incidentdiscovered Feb 23, 2026

Stated responseOffering one year, IDX, credit monitoring and identity theft protection services

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov