MalwareTechnologyProfessional ServicesInformationRansomwareData EncryptedRansom DemandedEmployee Data InvolvedPIIEmploymentLowContained

HEAVY CONSTRUCTION SYSTEMS SPECIALISTS, INC.

bd_1ea81b194ebcf1cb · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 18, 2024

Filed

Jan 8, 2025

To disclose

12 weeks

Affected

1state residents only

Linked

4 filings

Confidence

67%

Full breach record for HEAVY CONSTRUCTION SYSTEMS SPECIALISTS, INC. →

Heavy Construction System Specialists, LLC reported a ransomware attack detected on October 18, 2024. The incident compromised personal information of one New Hampshire resident (employee/former employee). The company engaged cybersecurity experts, notified law enforcement, and offered credit monitoring services.

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Leak gap clock⏱ Leak >30d12 weeks discovery → filing

Incident timeline

discovery → filing · 12 weeks / 82 days

Oct 18, 2024

Discovered

Jan 8, 2025

Filed

vs. sector median

7 wks faster

This filing is one of 4 about the same incident.View merged incident

A leak claim by medusa about this victim predates this filing by 88 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitemedusabd_3b2b6a3616578f4a2024-10-11 · +88dCandidate

Regulatory filings (2) · sorted by filing gap

Maryland State AGbd_1003dcc4662eaf222025-11-13 · +309dVerified
Texas State AGbd_1c9ce00e4c47f4632026-01-05 · +362dVerified

Name: HEAVY CONSTRUCTION SYSTEMS SPECIALISTS, INC.
norm: heavy construction systems specialists

Name: HEAVY CONSTRUCTION SYSTEMS SPECIALISTS, INC.
norm: heavy construction systems specialists
Industry: TechnologyllmProfessional Servicesllm

Discovered: Oct 18, 2024
Materiality determined: —
Notification sent: Dec 23, 2024
Affected individuals: 1state-resident count only
Data types: PIIEmployment
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General

During the incident: Initiated an investigation with the assistance of leading cybersecurity experts
Engaged third-party experts to quickly ascertain the nature and scope of the incident
Contacted law enforcement
Implemented security measures to prevent similar incidents from occurring in the future
Offered complimentary access to Experian IdentityWorks
Changes made: Implemented security measures to prevent similar incidents from occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(82 days from discovery to filing)
Compliance flags: Leak >30d
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 · 3 filings · 3 states

View merged incident ↗

New Hampshire State AGJan 8 · first · this page

Maryland State AG+309d

Texas State AG+362d

Pattern: first filing Jan 8 (NH), last Jan 5 (TX) — a 362-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/heavy-construction-system-specialists-20250108.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 8, 2025
Raw hash: a8f5defb5e0df0fd7a1fe8ad2ac79856c5f2a3983f68d0c32d635c9de25336b7

Linked disclosures

Ransomware claims (1)

Regulatory filings (2) · sorted by filing gap

Reporting entityHEAVY CONSTRUCTION SYSTEMS SPECIALISTS, INC.

Victim entityHEAVY CONSTRUCTION SYSTEMS SPECIALISTS, INC.

Incidentdiscovered Oct 18, 2024

Stated responseInitiated an investigation with the assistance of leading cybersecurity experts

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov