HackingProfessional ServicesProfessional ServicesPhishingTargetedData ExfiltratedIdentity (basic)Government IDMediumContained

McElroy, Deutsch, Mulvaney & Carpenter LLP

bd_03b000a29a602b0c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 3, 2025

Filed

Mar 12, 2026

To disclose

49 weeks

Affected

2state residents only

Linked

6 filings

Confidence

66%

Full breach record for McElroy, Deutsch, Mulvaney & Carpenter LLP →

Supplemental notice to NH AG by Mullen Coughlin LLC on behalf of McElroy, Deutsch, Mulvaney & Carpenter LLP. Cyberattack occurred March 28-April 1, 2025; discovered April 3, 2025. Affected 2 NH residents with name and SSN. Initial notice Dec 19, 2025. Credit monitoring provided.

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Incident timeline

undetected · 6 days

discovery → filing · 49 weeks / 343 days

Mar 28, 2025

Begins

Apr 3, 2025

Discovered

Mar 12, 2026

Filed

vs. sector median

+30 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Maine State AGbd_df428c93170c98cf2026-03-12Verified
Indiana State AGbd_698f1a0d029620162025-12-19 · +83dVerified
Nebraska State AGbd_6da1ae289ac345962025-12-19 · +83dVerified
New Hampshire State AGbd_bd3f74df05a359e32025-12-19 · +83dVerified

Show 1 more filing ↓up to 83d gap

Maine State AGbd_efd18d3b3c3e05362025-12-19 · +83dCandidate

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: McElroy, Deutsch, Mulvaney & Carpenter LLP
norm: mcelroy deutsch mulvaney carpenter
Domain: mdmc-law.com
Industry: Professional Servicesllm

Discovered: Apr 3, 2025
Breach occurred: Mar 28, 2025 – Apr 1, 2025
Undetected for: 6 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 19, 2025
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Regulator citations: Notifying relevant regulators, as required
Initial access: phishing_link

During the incident: Moved quickly to respond and investigate the suspicious activity
Secured our network
Notified federal law enforcement
Providing access to credit monitoring services for twelve (12) months, through Epiq
Changes made: Reviewing our policies and procedures to reduce the likelihood of similar future events
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 49 weeks(343 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 4 states

View merged incident ↗

Indiana State AGDec 19 · first

Nebraska State AGDec 19 · first

New Hampshire State AGDec 19 · first

Maine State AGDec 19 · first

Maine State AG+83d

New Hampshire State AG+83d · this page

Pattern: first filing Dec 19 (IN), last Mar 12 (NH) — a 83-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://mm.nh.gov/files/uploads/doj/remote-docs/mcelroy-deutsch-mulvaney-carpenter-20260312.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 12, 2026
Raw hash: 58e8df11100915c4509a4acde0f0dfabc8579810f05a52a637ed0f43f8f89f63

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityMcElroy, Deutsch, Mulvaney & Carpenter LLP

Incidentdiscovered Apr 3, 2025

Stated responseMoved quickly to respond and investigate the suspicious activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov