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 56 public disclosures across our corpus. First observed on a leak site on September 30, 2024; most recent post May 13, 2026. The operation is currently active.

Timeline of this disclosure

February 18, 2026DeWalch Technologies, Inc listed by Nitrogenon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,524 disclosures indexed across all operators we track. Geographically, DeWalch Technologies, Inc is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

← All victims

DeWalch Technologies, Inc

Claimed by Nitrogen · listed 3 months ago

Age

since listed · data leaked

Status timeline

Listed
Feb 18, 2026
Data leaked

At a glance

Group: Nitrogen
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Feb 18, 2026

About the victim

AI dossier — public-source company profile

DeWalch Technologies, Inc. is a vertically integrated engineering and manufacturing company headquartered in Houston, Texas, founded in 1982. The company operates across four key verticals: utility security (specialty meter locking hardware), contract manufacturing, energy solutions, and information/control/automation systems. DeWalch serves clients in the electric and gas utility industries as well as broader industrial markets, with sales operations in numerous countries.

Industry: Vertically Integrated Engineering & Contract Manufacturing
Address: 1441 Seamist Dr., Houston, TX 77008
Founded: 1982

Attack summary

Severity: medium — Data has been published (disclosed status: data_published), confirming exfiltration occurred; however, no specific sensitive regulated data categories (e.g., PII at scale, medical, financial records) are explicitly described in the leak post, and no data volume or detailed inventory is provided, limiting severity to medium.

The Nitrogen ransomware group claims to have compromised DeWalch Technologies, Inc. and lists it among a batch of victims on their leak site with a 'data_published' disclosure status, indicating exfiltration and publication of company data. No ransom amount or specific data volume was stated in the post.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Company operational data
Engineering and manufacturing records
Sales and business records

What the group claims

DeWalch Technologies, Inc. is a vertically integrated engineering and manufacturing company with operations in four key verticals: security, energy, manufacturing, and digital.

The leak post

captured from the group's site

The world's largest contract electronics manufacturer, whose operations are officially divided into four key segments: consumer electronics, cloud and networking products, computing equipment, as well as components and other products. 
PCCA supports the creation of personalized medicine and innovative products, as well as pharmaceutical compounding. 
One of the leaders in video stream optimization, security, and content monetization. Offers advanced solutions for efficient video delivery across all digital ecosystems. 
TThe company operates in the wholesale trade of engineering materials and equipment.. 
The company specializes in the development, engineering, and manufacturing of various components and systems for the automotive industry and other sectors. 
Specializing in instrumental welding (TIG, Micro TIG, MIG), microlaser welding, laser cladding, laser hardening, laser engraving, stress relieving, and mechanical processing. 
Specializing in the production of structural steel and construction. 
A major manufacturer of art materials for professional artists and designers: acrylic paints, oils, watercolors, pastels and other media/materials. 
AvtechTyee is a company operating in…

Sources

Victim sitewww.dewalch.com
Leak posthttp://nitrogenczslprh3xyw6lh5xyjvmsz7ciljoqxxknd7uymkfetfhgvqd.onion/posts/69133f76eceea49e97964033

Source

Indexed 3 months 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.