Social EngineeringFinancial ServicesFinancePhishingStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Concorde Investment Services

bd_63f15f7409ed75da · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 12, 2024

Filed

Feb 25, 2025

To disclose

28 weeks

Affected

2state residents only

Linked

3 filings

Confidence

66%

Concorde Investment Services notified the Maryland AG of a data event affecting 2 residents. Unauthorized access to employee email accounts occurred between June 13 and August 19, 2024, likely via phishing. Impacted data included names and Social Security numbers. Concorde provided credit monitoring and guidance to affected individuals.

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Maryland clock✗ MD AG >90d28 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 60 days

discovery → filing · 28 weeks / 197 days

Jun 13, 2024

Begins

Aug 12, 2024

Discovered

Feb 25, 2025

Filed

vs. sector median

+20 wks slower

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

Indiana State AGbd_5a0c2eac0e81214e2025-02-25Verified
Massachusetts State AGbd_f408e5a421a34a552025-02-25Verified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Concorde Investment Services
norm: concorde investment services
Industry: Financial Servicesllm

Discovered: Aug 12, 2024
Breach occurred: Jun 13, 2024 – Aug 19, 2024
Undetected for: 60 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 25, 2025
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Providing written notice of this incident to relevant state regulators
Initial access: phishing_link

During the incident: Launched an investigation to confirm the full nature and scope of the activity
Undertook a thorough review of the potentially impacted emails and documents
Provided written notice of this incident to two (2) Maryland residents
Working to implement additional safeguards and training to its employees
Providing access to credit monitoring services for twelve (12) months, through Experian, to individuals whose personal information was potentially affected
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this incident to relevant state regulators
Changes made: Implementing additional safeguards and training to its employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 weeks(197 days from discovery to filing)
Compliance flags: MD AG >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Indiana State AGFeb 25 · first

Massachusetts State AGFeb 25 · first

Maryland State AGFeb 25 · 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://oag.maryland.gov/resources-info/SBN%20Documents/2025/ITU-376419.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 25, 2025
Raw hash: 8c08887db02457dfc4fd7af074848871beb9192a99cb757bece53370e4aec03c

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityConcorde Investment Services

Incidentdiscovered Aug 12, 2024

Stated responseLaunched an investigation to confirm the full nature and scope of the activity

ComplianceMD AG >90d

Extraction provenanceno artifact recorded

Source provenanceoag.maryland.gov