HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDMediumContained

Martin Snow, LLP

bd_5441a50fb1c5fb35 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 10, 2024

Filed

Mar 18, 2025

To disclose

40 weeks

Affected

19state residents only

Linked

4 filings

Confidence

66%

Full breach record for Martin Snow, LLP →

Martin Snow, LLP notified the Maryland Attorney General of unauthorized network access occurring April 2-4, 2024. The incident affected 19 Maryland residents, exposing names, SSNs, and taxpayer IDs. The firm notified federal law enforcement and provided 12 months of Equifax credit monitoring to affected individuals.

J jump to incidentP pin to compareR raw source

Maryland clock✗ MD AG >90d40 weeks discovery → filing

Incident timeline

undetected · 69 days

discovery → filing · 40 weeks / 281 days

Apr 2, 2024

Begins

Jun 10, 2024

Discovered

Mar 18, 2025

Filed

vs. sector median

+21 wks slower

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_087c4c525b11f88f2025-03-18Verified
New Hampshire State AGbd_31f6c1246c8e8ba52025-03-18Verified
Massachusetts State AGbd_45dcd0742b2ee9262025-03-18Verified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Martin Snow, LLP
norm: martin snow
Industry: Professional Servicesllm

Discovered: Jun 10, 2024
Breach occurred: Apr 2, 2024 – Apr 4, 2024
Undetected for: 69 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 18, 2025
Affected individuals: 19state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: Provided written notice to Maryland Attorney General

During the incident: Notified federal law enforcement regarding the event
Providing access to credit monitoring services for twelve (12) months, through Equifax, to individuals whose personal information was potentially affected by this event, at no cost to these individuals
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this event to relevant state regulators
Changes made: Working to implement additional safeguards and training to its employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 40 weeks(281 days from discovery to filing)
Compliance flags: MD AG >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGMar 18 · first

New Hampshire State AGMar 18 · first

Massachusetts State AGMar 18 · first

Maryland State AGMar 18 · 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-376567.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 18, 2025
Raw hash: 0ccddc762e06211397c2f9998b2f3479ed26f996bacce9aabc4e892d96e816b1

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityMartin Snow, LLP

Incidentdiscovered Jun 10, 2024

Stated responseNotified federal law enforcement regarding the event

ComplianceMD AG >90d

Extraction provenanceno artifact recorded

Source provenanceoag.maryland.gov