Seeley Office Systems Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On May 24, 2026, the ransomware group thegentlemen listed Seeley Office Systems on its leak site, stating that internal files had been taken during an attack. The number of individuals affected remains unknown, and no further details on the volume or contents of the material have been made public. The incident underscores the exposure risks that arise when operational records from a service provider are removed without authorization, particularly for a company that handles equipment and data flows for other businesses in its region.

Breaking down the breach

The only confirmed information is the listing itself and the assertion that internal files were exfiltrated. No date of the intrusion, no count of records, and no description of the encryption or extortion steps have been released by either the organization or the group. Public reporting has not confirmed whether any material was subsequently published or sold.

The group behind it: thegentlemen

Thegentlemen is a ransomware operator that uses data exfiltration followed by listings on a dedicated leak site to pressure victims. The group’s pattern involves claiming possession of files from targeted organizations and using the site to signal that material may be released if demands are not met. In this case the group claims Seeley Office Systems was among its targets, but no independent verification of the claim or of any subsequent data release has been reported.

Who is Seeley Office Systems?

Seeley Office Systems is a family-owned company established in 1981 and based in Glens Falls, New York. It supplies printers, multifunction devices, managed print services, and related consumables to organizations in the Capital Region and the Adirondacks. As a provider of office infrastructure, the firm routinely processes information connected to its clients’ printing and document workflows.

What data was at risk

The listing refers only to “internal files exfiltrated in ransomware attack.” No inventory of specific data categories has been published. Organizations of this type commonly hold customer contact details, service contracts, equipment configurations, and billing records, yet the precise composition of any material removed from Seeley Office Systems has not been confirmed.

Why it matters

Internal files from a managed-print provider can contain operational information that affects both the company and its clients. Even without confirmed publication, the removal of such records creates the possibility that business relationships, equipment inventories, or administrative details could be used for further targeting or fraud. The absence of a disclosed record count leaves the scale of potential impact undetermined.

If your data was in this claimed breach

Monitor bank and credit accounts for unusual activity and consider placing fraud alerts with major credit bureaus. Review any service agreements or invoices received from Seeley Office Systems for signs of unauthorized changes. Individuals can also run a free exposure scan of their email address against known breach repositories to check whether their information appears in previously published data sets.

AICompiled with AI assistance from public sources and published under our editorial standards.