Palmer Sicard Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Palmer Sicard was listed by thegentlemen ransomware group on June 15, 2026, after internal files were exfiltrated in a ransomware attack; the date of the intrusion itself has not been established. Individuals connected to the organisation should review any notices from Palmer Sicard and consider steps to protect their information.
Inside the incident
The only confirmed detail is the listing itself and the claim that files were taken. No timeline for the intrusion, method of access, or confirmation of encryption has been made public. The scale of the operation and whether data was published or used for further demands also remain undisclosed.
The group behind it: thegentlemen
Thegentlemen is a ransomware operation that maintains a leak site to list victims and, in some cases, release stolen material. Such groups commonly gain initial access through phishing, credential compromise, or unpatched systems, then move laterally to locate and copy data before deploying encryption. Their listings serve as a form of pressure on targeted organizations. The current entry regarding Palmer Sicard is presented by the group as a claim; independent verification of the data or the circumstances of the incident has not been reported.
Who is Palmer Sicard?
Palmer Sicard, also referred to as Palmer & Sicard, is a mechanical contracting firm established in 1954 and headquartered in Exeter, New Hampshire. The company is 100 percent employee-owned and provides HVAC installation, commercial plumbing, and sheet-metal fabrication services across Northern New England. Organizations of this type routinely maintain records on employees, project partners, suppliers, and building systems for facilities they service.
What was likely exposed
The listing names only “internal files” as having been exfiltrated. The precise contents of those files have not been disclosed. Companies in the mechanical contracting sector commonly store employee records, project documentation, client contact information, financial data, and details of installed building systems. Whether any of these categories were present in the exfiltrated material is unconfirmed.
Why it matters
Exposure of internal files can create operational and privacy risks for the organization and for individuals whose information appears in project or personnel records. For a firm handling building systems, leaked documentation may also reveal specifications of critical infrastructure at client sites. The absence of Reported Details on the data types leaves affected parties without clear guidance on the exact nature of the exposure.
Were you affected?
Individuals who have worked with Palmer Sicard or its clients have no public way to determine involvement at this time. Practical first steps include monitoring financial and email accounts for unusual activity, enabling multi-factor authentication where available, and reviewing any recent correspondence from the company. Readers may also run a free exposure scan of their email address against known breach data to check for prior appearances in published datasets.
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.