ACR1.COM Commercial Roofing listed on Qilin ransomware leak site

• Ransomware group: Qilin
• Country: United States
• Sector: Professional Services
• Announcement date: March 27, 2026

The Qilin ransomware group has listed ACR1.COM Commercial Roofing on its leak site, alleging a data breach. This announcement, made on March 27, 2026, indicates that the organization's digital assets may have been targeted by the threat actors.

The claimed attack event

According to the announcement posted by the Qilin ransomware group on March 27, 2026, the group claims to have successfully gained access to the systems of ACR1.COM Commercial Roofing. The threat actors allege that they have exfiltrated data from the organization's network during this intrusion.

Ransomware leak sites are platforms used by cybercriminal groups to host information stolen during a breach. These sites serve as a tool for extortion, where attackers post details about a victim to pressure them into paying a ransom. In this instance, the listing serves as the group's claim regarding their unauthorized access and the subsequent theft of information from the target organization.

Details regarding the leaked data

At this time, the specific nature and content of the leaked data remain unknown. While the group has made a listing, the provided screenshot associated with the announcement is blurred, preventing a clear identification of the stolen files. Furthermore, the group has not provided information regarding the total size of the data stolen or the specific count of files involved in the breach. No ransom demand has been publicly specified in the current listing.

The listing names no specific data types that have been compromised.

Organization profile

ACR1.com is a United States-based construction company providing commercial roofing services. The company specializes in roof repair, maintenance, and installation for commercial buildings.

Impact and security implications

This incident may pose risks to the organization's operational continuity. The Qilin group likely aims to exert pressure on the organization by threatening to publish data through double extortion tactics. Double extortion is a common ransomware strategy where attackers not only encrypt an organization's data to disrupt operations but also steal sensitive information to threaten its public release, thereby increasing the likelihood of a ransom payment.

Given that the organization is based in the United States, legal processes under state-level data protection laws and notification requirements may be triggered. Depending on the content of the leaked data, secondary risks such as identity theft or targeted phishing attacks against customers and employees may be observed. Such secondary attacks often occur when personal or corporate information is used to impersonate legitimate entities to deceive individuals.

In the professional services and construction sectors, maintaining robust cybersecurity postures is essential to protect operational workflows and sensitive client information. Organizations typically focus on defensive measures such as implementing multi-factor authentication, maintaining regular offline backups, and conducting regular security awareness training to mitigate the risk of unauthorized access. Public information regarding the specific operations and methods of the Qilin group remains limited.