Was Rotamac hit by ransomware?

Rotamac was listed by the thegentlemen ransomware operation (Canada), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the thegentlemen ransomware group?

thegentlemen is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Rotamac breach?

thegentlemen published data attributed to Rotamac. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Rotamac Inc.

listed as Rotamac · Claimed by Thegentlemen · listed 3 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedOct 3, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Canada
Sector: Manufacturing
Listed on leak site: Oct 3, 2026

About the victim

AI dossier — public-source company profile

Rotamac Inc. is a privately held industrial equipment distributor founded in November 2019 and based in Rosemère, Montreal, Quebec. The company specializes in sales representation and distribution of pumps, air/gas compressors, vacuum pumps, and nitrogen/oxygen generators, with an e-commerce platform (canadacompressorparts.com) carrying approximately 43,675 SKUs of non-OEM compressor parts compatible with major manufacturers like Atlas Copco and Ingersoll Rand.

Industry: Industrial Equipment Distribution
Address: 283 rue de Normandie, Rosemère, QC J7A 1T4, Canada
Employees: 1-10
Founded: 2019

Attack summary

Severity: low — The disclosure appears to be a listing/announcement with publicly available company information from the leak post itself. No proof files, screenshots, or specific sensitive data (customer PII, financial records, trade secrets) are mentioned or demonstrated. No operational disruption is claimed.

The leak post discloses that thegentlemen group has published data from Rotamac. The post provides company background information but does not explicitly state what data was exfiltrated, encrypted, or the nature of the breach.

low

What the group claims

rotamac.ca Rotamac Inc. is a privately held industrial equipment distributor founded in November 2019 and based in Rosemère/Montreal, Quebec, Canada (283 rue de Normandie, Rosemère, QC J7A 1T4). It is a micro company of 1–10 employees, essentially built around owner-founder Joey Desrosiers (HEC Montréal, 20+ years in compressed air and rotating equipment). Revenue is not publicly disclosed (small private company), but its e-commerce arm canadacompressorparts.com carries ~43,675 SKUs of non-OEM compressor parts (Atlas Copco, Ingersoll Rand, CompAir compatible) shipping across Canada. Core business: sales representation and distribution of pumps, air/gas compressors, vacuum pumps and nitrogen/oxygen generators, focused on lowering Total Cost of Ownership

Sources

Victim siterotamac.ca

Source

Indexed 3 hours 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.

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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 922 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post October 3, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

October 3, 2026Rotamac listed by thegentlemen on the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 922 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,696 disclosures indexed across all operators we track. Geographically, Rotamac is reported in Canada, a country with 320 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Rotamac appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CCCS (Canada), as required for your jurisdiction.
Monitor for the data appearing on thegentlemen's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.