Disclosure context

About J

The J ransomware group is a newly emerged threat actor first observed in May 2025, operating with apparent financial motivations based on their targeting patterns across multiple countries and sectors. With limited public documentation available from established security research organizations, the group has demonstrated rapid operational capability by compromising 41 known victims within their initial months of activity. Their targeting strategy appears opportunistic, focusing primarily on organizations in the United States, United Kingdom, France, Argentina, and Germany, with a particular emphasis on technology companies, manufacturing firms, construction businesses, and business services providers. The diversity of their geographic and sectoral targeting suggests either a broad-spectrum approach to victim selection or potential use of automated tools for initial compromise identification. Given the recent emergence of this group and limited reporting from major cybersecurity firms and law enforcement agencies, specific details regarding their technical methodologies, ransom demands, data exfiltration practices, or organizational structure remain undocumented in publicly available threat intelligence. The group remains active as of current reporting periods, though their relative obscurity in established threat intelligence databases suggests they may be operating at a smaller scale compared to more prominent ransomware-as-a-service operations. The group has been linked to 41 public disclosures across our corpus. First observed on a leak site on May 2, 2025; most recent post November 9, 2025. The operation is currently inactive.

Timeline of this disclosure

September 29, 2025Virtual Projects (virtualprojects.build) listed by Jon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Construction sector, which has 415 disclosures indexed across all operators we track. Geographically, Virtual Projects (virtualprojects.build) is reported in DK, a country with 6 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

Virtual Projects (virtualprojects.build)

Claimed by J · listed 8 months ago

Age

since listed · data leaked

Status timeline

Listed
Sep 29, 2025
Data leaked

At a glance

Group: J
Status: Data leaked
Country: DK
Sector: Construction
Listed on leak site: Sep 29, 2025

About the victim

AI dossier — public-source company profile

Virtual Projects is a BIM management and technology consulting firm serving the construction industry, based in Northern California. The company offers preconstruction, project estimating, construction management, and virtual design and construction (VDC) services. Their website identifies them as 'BIM Managers & Technology Consultants', indicating a specialisation in digital construction methodologies.

Industry: BIM Management & Construction Technology Consulting

Attack summary

Severity: high — Data has been published (data_published status confirmed), indicating confirmed exfiltration with actual release of company data. Construction project files and client records likely contain sensitive business and potentially personal information, representing significant business data exposure.

Group J claims to have published data exfiltrated from Virtual Projects, with the disclosed status marked as data_published, indicating stolen files have been released. No ransom amount or specific data volume was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Business documents
Project files
Client data
Construction management records

Original description

AI-summarised, not from the leak post

Virtual Projects is a construction-focused firm based in Northern California. They are dedicated to providing a comprehensive range of services including preconstruction, project estimating, and construction management. Their cutting-edge technology and experienced personnel allow them to offer virtual design and construction methodologies, assisting clients from concept through to completion.

Sources

Source

Indexed 8 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.