Air Conditioning Florida & Mrdsllc & RTE Stucco & MR Drywall Services Listed by qilin Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Air Conditioning Florida, Mrdsllc, RTE Stucco, and MR Drywall Services were listed by the Qilin ransomware group on May 20, 2026, after internal files were exfiltrated in an attack whose timing has not been established. Individuals connected to these organisations should review any notices from the companies and consider protective steps if their information may have been exposed.
What happened
The only confirmed detail is the appearance of the organisation on Qilin’s leak site on the reported date. The group asserts that internal files were exfiltrated, but no further technical description, ransom demand, or proof-of-access material has been made public. The number of people potentially affected is listed as unknown, and no additional timeline or method of initial access has been disclosed.
Who is qilin?
Qilin is a ransomware operation that has been publicly tracked since at least 2022. Like several other groups, it employs a double-extortion model in which data is copied before encryption and later threatened with publication if a ransom is not paid. The group maintains a leak site where it lists organisations it claims to have compromised; such listings are presented by the actors themselves and are not independently verified at the time they appear.
Air Conditioning Florida & Mrdsllc & RTE Stucco & MR Drywall Services Listed by qilin Ransomware Group and its sector
The named entities operate in the construction and building-services sector, providing air-conditioning installation, stucco application, drywall work and related contracting services. Companies of this type routinely maintain records on employees, subcontractors, clients, project specifications and financial transactions. A breach affecting such an organisation can therefore touch both corporate operational data and personal information belonging to individuals connected to construction projects.
The information in question
The only data category named in the listing is “internal files exfiltrated in ransomware attack.” No inventory of specific document types, file counts or data fields has been published. While organisations in this sector commonly store employee records, client contact details, contract documents and billing information, the exact contents of the claimed exfiltration remain unconfirmed.
What's at stake
For individuals whose information appears in the exfiltrated files, the primary concerns are potential misuse of personal or financial details and the possibility of follow-on phishing or fraud attempts. For the organisation itself, the incident adds operational disruption, possible regulatory scrutiny and the cost of incident response and system restoration. Because the scale of exposure is still unknown, the full extent of these consequences cannot yet be measured.
Were you affected?
Anyone who has worked with or for the listed companies can begin by monitoring their email accounts and financial statements for unusual activity. Running a free exposure scan of an email address against known breach data sets provides one practical first step; organisations that believe they may be involved should also contact the affected companies directly for any official notifications that may be issued later.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Publicly posted by qilin — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.