Hillside Lumber Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Hillside Lumber was listed by thegentlemen ransomware group on May 09, 2026, after internal files were exfiltrated in a ransomware attack; the number of people affected has not been disclosed. Individuals connected to the company should check whether their information was exposed and take appropriate protective steps.
On May 9, 2026, Hillside Lumber was listed by the ransomware group thegentlemen. The listing states that internal files were exfiltrated in a ransomware attack against the company. The number of people affected has not been disclosed.
The incident involves a small, family-owned supplier of building materials in southern Maine. Public information remains limited to the group’s claim and the general description of exfiltrated files.
Inside the incident
The only confirmed detail is the group’s listing of Hillside Lumber and its assertion that internal files were taken during a ransomware operation. No information has been made public about when the intrusion occurred, how long the attackers had access, or the volume of data involved. The precise encryption or deployment methods used in the attack are also undisclosed.
Inside thegentlemen
Thegentlemen is a ransomware group that publishes victim names on a leak site after claiming to have stolen data. The group’s listing of Hillside Lumber constitutes its claim of responsibility for the incident. No independent confirmation of the claim has been reported.
About Hillside Lumber
Hillside Lumber is a family-owned business established in 1979 and based in Westbrook, Maine. It supplies lumber, sawmill products, kitchen design services, and other building materials to contractors, builders, and homeowners across southern Maine and employs 38 people. Companies of this type routinely maintain records related to customer orders, supplier transactions, and internal operations.
What data was at risk
The listing refers only to “internal files.” The exact categories of information contained in those files have not been disclosed. While organizations in the building-supply sector commonly hold customer contact details, order histories, and financial records, the specific contents of the exfiltrated material remain unconfirmed.
What's at stake
Any personal or business information present in the files could be used for targeted fraud or unauthorized account access. For the company, the exposure may complicate customer relationships and require additional security measures. The absence of a confirmed count of affected individuals makes it difficult to assess the full scope of potential impact.
What to do if you're exposed
Individuals who have done business with Hillside Lumber should monitor their financial accounts and credit reports for unusual activity. Changing passwords for any accounts associated with the company and enabling multi-factor authentication are standard first steps. Readers can also run a free exposure scan of their email address to check whether their information appears in known breach data.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Publicly posted by thegentlemen — 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.