Disclosure context

About thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 424 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post May 18, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

May 18, 2026DEVO-Tech listed by thegentlemenon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,524 disclosures indexed across all operators we track. Geographically, DEVO-Tech is reported in CH, a country with 27 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

← All victims

DEVO-Tech AG

listed as DEVO-Tech · Claimed by thegentlemen · listed 2 days ago

Age

since listed · data leaked

Status timeline

Listed
May 18, 2026
Data leaked

At a glance

Group: thegentlemen
Status: Data leaked
Country: CH
Sector: Technology
Listed on leak site: May 18, 2026

About the victim

AI dossier — public-source company profile

DEVO-Tech AG is a Swiss family-owned engineering company headquartered in Ziefen, Switzerland, specializing in custom mechanical solutions for apparatus engineering, vacuum lifting technology, and tunnel construction. Founded in 1997, the company employs 30+ professionals and serves clients in over 45 countries, offering high-precision manufacturing and full-cycle project support from planning to production.

Industry: Custom Mechanical Engineering & Vacuum Lifting Technology
Address: Ziefen, Switzerland
Employees: 30-49
Founded: 1997

Attack summary

Severity: medium — Data has been published (not merely listed), indicating confirmed exfiltration, but the company is a small SME (~30 employees) with no indication of regulated personal data at scale, medical, financial, or government data; scope and sensitivity of leaked data are unspecified.

The group 'thegentlemen' claims to have attacked DEVO-Tech AG and has published data (disclosed status: data_published), though no specific ransom amount, data volume, or explicit description of exfiltration versus encryption is stated in the post.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Company business data
Engineering/project files
Client records

What the group claims

devo-tech.ch zoominfo.com/c/devo-tech-ag/430812943 DEVO-Tech AG is a Swiss family-owned engineering company from Ziefen, specializing in custom mechanical solutions for apparatus engineering, vacuum lifting technology, and tunnel construction since 1997. With 25+ years of expertise and a team of 30+ professionals, they deliver high-precision, flexible manufacturing and full-cycle project support — from planning to production. Their innovations serve clients in 45+ countries, combining Swiss quality, sustainability, and reliable partnership for complex industrial challenges

Sources

Victim sitedevo-tech.ch

Source

Indexed 2 days ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.