Willow Construction Listed by qilin Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Willow Construction was listed by the Qilin ransomware group on February 19, 2026, after internal files were exfiltrated in a ransomware attack. An undisclosed number of people may have been affected; anyone connected to the company should verify their exposure and take protective steps.
Breaking down the breach
The incident is known only through the listing on qilin’s leak site. The group states that it exfiltrated internal files from Willow Construction as part of a ransomware operation. No independent confirmation of the claim has been made public, and the company has not released a statement detailing the timeline, method of access, or volume of data involved. All other aspects of the incident, including whether encryption occurred or whether any ransom demand was issued, remain undisclosed.
The group behind it: qilin
Qilin is a ransomware operation that has been publicly tracked since 2022. The group typically gains access through compromised remote-access services or phishing, deploys encryption on targeted systems, and then threatens to publish stolen data on its leak site if payment is not received. It has listed organisations across multiple sectors on that site in the past. In this case the group claims responsibility for the Willow Construction incident solely through the leak-site posting; no additional statements or proof have been verified beyond that listing.
Who is Willow Construction?
Willow Construction operates in the commercial and industrial construction sector. Companies of this type routinely maintain records related to project bids, subcontractor agreements, employee payroll and benefits information, client contact details, and internal financial or operational documents. A breach involving such an organisation can therefore touch both corporate records and personal information belonging to staff, clients, and business partners.
What was likely exposed
The only data category named in the available facts is “internal files exfiltrated in ransomware attack.” No specific file types, record counts, or data categories have been disclosed. Organisations in the construction industry commonly store employee identification numbers, contact information, banking details for payroll, and project-related correspondence; however, whether any of these categories were among the files claimed by qilin is unconfirmed.
The real-world impact
Exposure of internal construction files can create downstream risks for individuals whose personal or financial information appears in those records, such as increased potential for identity theft or fraud. For the organisation itself, the incident may complicate ongoing projects, contract negotiations, and regulatory compliance obligations. Because the exact contents and scope remain unknown, the full extent of these risks cannot yet be measured.
What to do if you're exposed
Individuals who believe their information may have been involved should monitor bank and credit accounts for unusual activity and consider placing fraud alerts with major credit bureaus. Changing passwords for any work-related accounts and enabling multi-factor authentication where available are immediate practical steps. Readers can also run a free exposure scan of their email address against known breach data to check for prior appearances in public listings.
AICompiled with AI assistance from public sources and published under our editorial standards.
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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.