thermoid.com Listed by cactus Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On 12 February 2025, thermoid.com appeared on a listing by the cactus ransomware group, which claims to have carried out a ransomware attack that included the exfiltration of internal files. The number of people whose information may be involved remains unknown, and public detail on the precise contents of those files is limited. For employees, customers, suppliers or others who have shared data with the company, the practical stakes centre on uncertainty: whether personal or business records have left the organisation’s control, and what that could mean for privacy, fraud risk or operational continuity.

Because the scale of any exposure has not been confirmed, individuals connected to thermoid.com have little immediate way to know if they are affected. That lack of clarity is itself a source of concern, as it leaves people without clear guidance on whether to take protective steps.

Inside the incident

Public reporting on the incident is sparse and rests primarily on the cactus group’s claim that thermoid.com was the victim of a ransomware attack in which internal files were exfiltrated. The listing was reported on 12 February 2025. No independent confirmation of the attack’s success, the volume of data taken, the method of intrusion, or the exact timing of the compromise has been made available in the material reviewed. The number of people affected is listed as unknown. Beyond the statement that internal files were removed, no further breakdown of file names, categories or quantities has been disclosed. In short, the incident is known chiefly through the threat actor’s leak-site claim; operational details remain undisclosed.

Inside cactus

Cactus is a ransomware group that has been active in public reporting since roughly 2023. Like many contemporary ransomware operators, it is associated with double-extortion tactics: encrypting systems while also copying data and threatening to publish or sell it if a ransom is not paid. The group typically posts victim names on a dedicated leak site and sometimes releases sample files to pressure organisations. Its targets have spanned multiple sectors rather than a single industry. These patterns are drawn from well-documented public accounts of the group’s broader activity. With respect to thermoid.com specifically, the only claim on record is the listing itself and the assertion that internal files were exfiltrated; no additional statements by cactus about this particular victim have been provided in the available facts.

Who is thermoid.com?

Thermoid.com is the online presence of HBD Thermoid, a manufacturer of industrial rubber products headquartered in Dublin, Ohio. Founded in 1883, the company produces air, automotive, aviation, bulk-transfer, chemical, marine, water, welding and multipurpose industrial hoses, as well as industrial ducting and conveyor belting. Public figures place its revenue at approximately $183.2 million. Its listed address is 5200 Pl Upper Metro Ste 110, Dublin, Ohio 43017, United States, with a phone number of (614) 526-7000. As a long-established industrial manufacturer, the organisation sits in a sector that routinely handles supplier contracts, customer orders, employee records, technical specifications and logistics data. A breach involving internal files at such a firm is consequential because those materials can contain both commercial secrets and personal information belonging to workers, partners or clients, any of which could be misused if they reach unauthorised hands.

What was likely exposed

The facts state only that internal files were exfiltrated in a ransomware attack. No further data types—such as names, contact details, financial records, health information or intellectual property—are named. Exact contents therefore remain unconfirmed. Organisations of this kind typically maintain employee personnel files, payroll data, customer and supplier contact lists, purchase orders, engineering drawings, quality-control records and internal correspondence. Whether any of those categories were among the files taken cannot be verified from the information available. Readers should treat the exposure as limited to the general description of “internal files” until more specific disclosure occurs.

What's at stake

For individuals whose data may have been included, the concrete risks include possible misuse of personal identifiers for phishing, account takeover or identity fraud if such details were present. Even without confirmed personal data, business contacts or contract information could enable more targeted social-engineering attempts. For the organisation, the stakes involve potential disruption of operations, loss of proprietary process knowledge, regulatory notification duties if personal data prove to be involved, and reputational damage among customers and partners. Because the volume and sensitivity of the files remain undisclosed, the full extent of these risks cannot yet be measured; the prudent assumption is that any internal material that left the network could be examined or resold by third parties.

Were you affected?

If you have worked for, supplied, or purchased from HBD Thermoid or thermoid.com, treat the possibility of exposure seriously until more information emerges. Monitor financial and email accounts for unusual activity, enable multi-factor authentication where available, and be cautious of unsolicited messages that reference the company or industrial products. Consider placing fraud alerts with credit bureaus if you believe personal identifiers may have been involved. Readers can also run a free exposure scan of their email address to check whether that address has already appeared in known breach data sets; such a scan does not confirm involvement in this specific incident but can indicate whether credentials or contact details are circulating more widely. Stay alert for any official notices from the company itself, as those remain the most reliable source of confirmation.

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