Was Kilgore Industries hit by ransomware?

Kilgore Industries was listed by the Nitrogen ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Nitrogen ransomware group?

Nitrogen is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Kilgore Industries breach?

Nitrogen published data attributed to Kilgore Industries. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Kilgore Industries

Claimed by Nitrogen · listed 2 years ago

19m

Age

since listed · data leaked

Status timeline

ListedDec 17, 2024
Data leakeddate unknown

At a glance

Group: Nitrogen
Status: Data leaked
Country: United States
Sector: Business Services
Listed on leak site: Dec 17, 2024

About the victim

AI dossier — public-source company profile

Kilgore Industries is a Houston-based MEP contractor founded in 2000 that designs, builds, and installs mechanical, electrical, plumbing, and HVAC systems for commercial and industrial projects across Texas. The company operates across Houston, Dallas, Austin, and San Antonio, serving healthcare, aviation, data centers, education, and government sectors with design-build, fabrication, and service capabilities.

Industry: Mechanical, Electrical & Plumbing (MEP) Contracting
Address: Houston, Texas, United States
Founded: 2000

Attack summary

Severity: medium — Data published by the group with no proof files or screenshots visible in the truncated post. No specific sensitive data inventory disclosed. The company handles construction project data and client information but regulated sectors (healthcare, government) involvement is as a contractor, not custodian of PII at scale.

The Nitrogen group claims to have breached Kilgore Industries and exfiltrated data. No specific details on data type or operational impact are provided in the truncated leak post.

medium

What the group claims

Headquartered in Houston, Texas, Kilgore Industries, LP designs, builds and installs HVAC, mechanical, electrical and plumbing systems in the United States

Screenshot of the leak post

Sources

Victim sitekilgoreind.com
Leak posthttp://nitrogenczslprh3xyw6lh5xyjvmsz7ciljoqxxknd7uymkfetfhgvqd.onion/posts/67619205c051119d0a964033

Source

Indexed 2 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Nitrogen

**Nitrogen** is an emerging ransomware group that first appeared in September 2024, operating with apparent financial motivations through targeted extortion campaigns primarily focused on North American and European organizations. The group has claimed responsibility for attacks against 46 documented victims across multiple sectors, with manufacturing companies representing their most frequent targets. Limited public information suggests the group operates independently rather than as a Ransomware-as-a-Service model, though their specific country of origin and potential affiliations with other cybercriminal organizations remain undetermined by major security research firms. Their attack methodology appears to focus on opportunistic targeting across diverse industries including manufacturing, business services, technology, and hospitality sectors, with the United States serving as their primary area of operations followed by significant activity in Canada, Portugal, India, and France. Due to the group's recent emergence and relatively low profile compared to established ransomware families, detailed technical analysis of their encryption methods, data exfiltration practices, and initial access vectors has not been extensively documented by major threat intelligence providers such as CISA, FBI, or Mandiant. Given the group's recent formation in September 2024, no major high-profile campaigns or significant law enforcement actions have been publicly reported, with their victim portfolio consisting primarily of small to medium-sized enterprises rather than critical infrastructure or Fortune 500 companies. Nitrogen appears to remain active as of current reporting, though their limited operational history and relatively small victim count suggest they are still establishing their presence within the broader ransomware ecosystem. The group has been linked to 57 public disclosures across our corpus. First observed on a leak site on September 30, 2024; most recent post June 3, 2026. The operation is currently active.

Timeline of this disclosure

December 17, 2024Kilgore Industries listed by Nitrogenon the group's public leak site

Other recent disclosures by Nitrogen

Nitrogen has been linked to 57 public victims on Darkfield. A sample of the most recent:

See the full Nitrogen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, Kilgore Industries is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Nitrogen means Kilgore Industries appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on Nitrogen's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.