DEVO-Tech Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
DEVO-Tech has been listed by thegentlemen ransomware group, with internal files reported as exfiltrated in an attack disclosed on May 18, 2026. Individuals connected to the organisation should check for any personal data exposure and take appropriate protective steps.
On May 18, 2026, the ransomware group thegentlemen listed DEVO-Tech on its leak site, stating that internal files had been exfiltrated during a ransomware attack. The number of individuals whose information may be involved remains unknown, as does the precise volume or content of any data taken. For a Swiss engineering firm that supplies specialized mechanical components to clients across more than forty countries, the listing raises the possibility that operational records, client correspondence, or technical documentation could circulate beyond the company’s control.
What happened
The only confirmed public information is the listing itself. Thegentlemen posted DEVO-Tech on its site on the reported date and asserted that files had been removed from the company’s systems. No further details on the date of the intrusion, the method of access, the quantity of data, or whether any material was subsequently published have been made available. The organization has not issued a public statement confirming or disputing the claim.
The group behind it: thegentlemen
Thegentlemen is a ransomware operation that maintains a public leak site where it lists organizations it claims to have targeted. Like other groups of this type, it typically combines encryption of systems with the removal of files, then uses the threat of disclosure to press for payment. The listing of DEVO-Tech constitutes the group’s claim of involvement; independent confirmation of the underlying intrusion has not been reported.
About DEVO-Tech
DEVO-Tech AG is a family-owned engineering company based in Ziefen, Switzerland. Established in 1997, it employs more than thirty staff and provides custom mechanical solutions for apparatus engineering, vacuum lifting technology, and tunnel construction. Its work serves clients in more than forty-five countries and often involves detailed technical specifications, project documentation, and supply-chain information developed over multi-year contracts.
What was likely exposed
The listing refers only to “internal files exfiltrated in ransomware attack.” No inventory of specific data categories has been released. Organizations of this kind routinely maintain engineering drawings, client contracts, supplier records, employee contact details, and financial documentation; whether any of these categories were among the files removed is not confirmed.
The real-world impact
Exposure of internal engineering and commercial files can create competitive or operational disadvantages for the company and its clients. If personal data such as employee or partner contact information was included, affected individuals could face increased phishing or social-engineering attempts. At present, the scale of any such exposure is unknown, so the extent of downstream consequences cannot be quantified.
If your data was in this claimed breach
Individuals who have had professional contact with DEVO-Tech can take the following steps while awaiting further information from the company:
- Monitor email and postal addresses associated with the firm for unexpected messages.
- Enable or review multi-factor authentication on accounts that may share passwords or recovery details with work systems.
- Run a free exposure scan of their email address against known breach data sets to check for prior appearances of the same credentials.
AICompiled with AI assistance from public sources and published under our editorial standards.
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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.