Westrian Group
Attack Intelligence
Westrian Group was compromised in a ransomware attack attributed to interlock in November 2025. The organization, operating in an undisclosed sector in United States, was added to the group's data leak site as part of an extortion campaign.
interlock operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.
https://www.jrengineering.com JR Engineering provides services in land management, surveying, land transportation, water resources, and structural design! This company was compromised due to extremely poor security and a weak IT department. Client databases were lost, including confidential contracts with clients and more! All of the company's current sketches and models are now publicly available, which could ruin its reputation and financial position!
Intelligence correlations link this incident to 1 vulnerability(ies) including CVE-2026-20131, which may have been leveraged as initial access vectors or for lateral movement.