Ransomware victim disclosure

Lorne Stewart Group

listed as lornestewartgroup.com · Claimed by blackbasta · listed 2 years ago

1 TB

Data size

18m

Age

since listed · data leaked

Status timeline

Listed
Dec 4, 2024
Data leaked

At a glance

Group: blackbasta
Status: Data leaked
Country: United Kingdom
Sector: Business Services
Listed on leak site: Dec 4, 2024
Data size: 1 TB

About the victim

AI dossier — public-source company profile

Lorne Stewart Group is a UK-based independent building services company providing mechanical and electrical engineering, integrated facilities management, off-site modular design and construction, and energy management solutions. With offices across England and Wales, they serve both public and private sector clients through multiple subsidiary businesses including Lorne Stewart Engineering, Lorne Stewart Facilities, and Rotary Building Services.

Industry: Building Services Engineering & Facilities Management
Address: Aladdin Building, Western Avenue, Greenford, Middlesex UB6 8UY, United Kingdom
Founded: 2016

Attack summary

Severity: high — Confirmed exfiltration and publication of 1 TB of sensitive business data including employee PII, financial records, client confidential information, and trade secrets. Data exposure at significant scale with clear operational and reputational impact to a substantial UK engineering firm.

BlackBasta claims to have exfiltrated approximately 1 TB of data from Lorne Stewart Group, including financial records, employee personal data and documents, confidential client information and NDAs, and engineering project details. No encryption-only claim stated; data has been published.

high

Data the group says was taken

AI dossier — extracted from the leak post

financial data
employee personal data and documents
confidential client data
NDAs
engineering project files

What the group claims

Lorne Stewart Group is a UK-based engineering and construction company that specializes in mechanical and electrical engineering, integrated facilities management, and off-site modular design and construction. The company has a long-standing heritage in the industry, providing services across various sectors including public and private projects.SITE: www.lornestewartgroup.com Address : Aladdin Building, Western Avenue Greenford, Middlesex UB6 8UY United KingdomTEL#: 020 8732 2000ALL DATA SIZE: ≈1tb 1. Financial data 2. Personal employees data, docs 3. Confidential data, NDA’s, Clients data 4. Engeneering, Projects & etc…

Sources

Victim sitelornestewartgroup.com
Leak posthttp://stniiomyjliimcgkvdszvgen3eaaoz55hreqqx6o77yvmpwt7gklffqd.onion/?id=lornestewartgroup.com

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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About blackbasta

Black Basta is a financially motivated ransomware group that emerged in April 2022 and has rapidly established itself as a significant threat actor, compromising over 500 organizations globally within its first two years of operation. The group is suspected to have ties to Russia-based cybercriminal networks and operates as a Ransomware-as-a-Service (RaaS) model, recruiting affiliates to conduct attacks while the core group maintains the ransomware infrastructure and negotiates with victims. Black Basta primarily gains initial access through phishing campaigns, exploitation of unpatched vulnerabilities, and compromised Remote Desktop Protocol (RDP) credentials, then deploys custom tools and living-off-the-land techniques to move laterally through networks before deploying their ransomware payload that uses ChaCha20 encryption. The group employs double extortion tactics, stealing sensitive data before encryption and threatening to publish it on their leak site if ransom demands are not met. Notable campaigns include attacks on major manufacturing companies, healthcare organizations, and critical infrastructure entities primarily across the United States, United Kingdom, Germany, Canada, and Italy, with the group showing particular focus on business services, manufacturing, technology, agriculture and food production, and transportation/logistics sectors. As of 2024, Black Basta remains active and continues to evolve its tactics, techniques, and procedures while maintaining a steady pace of victim recruitment and ransom collection operations. The group has been linked to 523 public disclosures across our corpus. First observed on a leak site on April 26, 2022; most recent post January 11, 2025. The operation is currently inactive.

Timeline of this disclosure

December 4, 2024lornestewartgroup.com listed by blackbastaon the group's public leak site

Data size: 1 TB

Other recent disclosures by blackbasta

blackbasta has been linked to 523 public victims on Darkfield. A sample of the most recent: