HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedPIIIdentity (basic)LowActive

CMC Design-Build

bd_9e29b8479aa87782 · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 25, 2025

Filed

Apr 22, 2025

To disclose

28 days

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for CMC Design-Build →

CMC Design Build Inc. notified the NH AG of unauthorized access to computerized platforms between Jan 15 and Mar 26, 2025. Suspicious activity was detected on Mar 25, 2025. The investigation is ongoing. One NH resident's PII was potentially involved. CMC engaged third-party cybersecurity specialists and is offering Experian IdentityWorks.

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Incident timeline

undetected · 69 days

discovery → filing · 28 days

Jan 15, 2025

Begins

Mar 25, 2025

Discovered

Apr 22, 2025

Filed

vs. sector median

14 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_15dbb2b71f5506802025-04-22Verified

Name: CMC Design-Build
norm: cmc design build
Domain: cmcdesignbuild.com

Name: CMC Design-Build
norm: cmc design build
Domain: cmcdesignbuild.com
Industry: Professional Servicesllm

Discovered: Mar 25, 2025
Breach occurred: Jan 15, 2025 – Mar 26, 2025
Undetected for: 69 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 22, 2025
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Launched an investigation, with the assistance of third-party cybersecurity specialists
Offering complimentary access to Experian IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGApr 22 · first

New Hampshire State AGApr 22 · 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://mm.nh.gov/files/uploads/doj/remote-docs/cmc-design-build-20250422.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 22, 2025
Raw hash: 2edf9797d137a44d7c9b6e7a1e6d70abd414e5fd0848bb26be78eabd0251df16

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCMC Design-Build

Victim entityCMC Design-Build

Incidentdiscovered Mar 25, 2025

Stated responseLaunched an investigation, with the assistance of third-party cybersecurity specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov