Disclosure context

About Interlock

Interlock is a recently emerged ransomware group that began operations in October 2024, primarily motivated by financial gain through extortion activities targeting organizations across multiple sectors. The group's country of origin and potential affiliations remain unclear given their recent emergence, with insufficient public documentation to determine whether they operate as an independent entity or under a Ransomware-as-a-Service model. Limited public information exists regarding their specific attack methodologies, initial access vectors, or encryption techniques, as major cybersecurity firms and law enforcement agencies have not yet published comprehensive technical analyses of their operations. Since beginning operations, Interlock has reportedly compromised approximately 100 victims, with their targeting primarily focused on organizations in English-speaking countries including the United States, Canada, United Kingdom, and Australia, as well as Italy, while demonstrating a preference for attacking education, manufacturing, healthcare, and public sector entities. The group remains active as of late 2024, though comprehensive threat intelligence profiles from established security research organizations have not yet been published due to the group's recent emergence in the threat landscape. The group has been linked to 109 public disclosures across our corpus. First observed on a leak site on October 13, 2024; most recent post May 11, 2026. The operation is currently active.

Timeline of this disclosure

January 7, 2026RGD Consulting Engineers listed by Interlockon 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, RGD Consulting Engineers is reported in Australia, a country with 368 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

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RGD Consulting Engineers

Claimed by Interlock · listed 4 months ago

Age

since listed · data leaked

Status timeline

Listed
Jan 7, 2026
Data leaked

At a glance

Group: Interlock
Status: Data leaked
Country: Australia
Sector: Construction
Listed on leak site: Jan 7, 2026

About the victim

AI dossier — public-source company profile

RGD Consulting Engineers is a Florida-based full-service engineering consulting firm specialising in mechanical, electrical, plumbing, and structural design. The firm serves commercial, residential, healthcare, institutional, and federal markets across Florida, the broader United States, and the Caribbean. As of March 2026, RGD was acquired by Kimley-Horn, with its Jupiter and Orlando offices integrating into Kimley-Horn's national platform.

Industry: MEP & Structural Engineering Consulting
Address: Jupiter, Florida, USA (primary office); Orlando, Florida, USA (second office)
Employees: 51-200

Attack summary

Severity: high — Data has been confirmed as published by the threat actor, indicating successful exfiltration. The firm handled healthcare, federal, and institutional projects, meaning exfiltrated data likely includes sensitive business and potentially regulated client information. The acquisition context also raises the risk of sensitive M&A and corporate data exposure.

The Interlock ransomware group claims to have attacked RGD Consulting Engineers and has published data (disclosed status: data_published), indicating exfiltration of company data. No specific ransom amount or data volume was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Engineering project files
Client records
Business correspondence
Financial documents
Employee records

What the group claims

RGD Consulting Engineers is a full-service engineering firm specializing in mechanical, electrical, plumbing, and structural design, based in Florida. RGD is focused on providing engineering solutions, exceptional customer service, and cost-effective systems. Serving a variety of markets throughout Florida, the United States, and the Caribbean, RGD collaborates closely with its clients.

Sources

Victim sitergdengineers.com
Leak posthttp://qfxx5gxyh53a32itguxez6dqcsm3vkrron3nmxhzkn3g64qld5lijoyd.onion/index.php?p=

Source

Indexed 4 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.