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HB Consultants

listed as hbexperts-conseils.ca · Claimed by M3Rx · listed 2 days ago

1d
Age
since listed · data leaked

Status timeline

  1. ListedJun 11, 2026
  2. Data leakeddate unknown

At a glance

Group
M3Rx
Status
Data leaked
Country
Canada
Sector
Business Services
Listed on leak site
Jun 11, 2026

About the victim

AI dossier — public-source company profile

HB Consultants is a consulting firm with over 45 years of experience specializing in building science. They provide roof consulting, pavement consulting, and building envelope consulting services to clients in the construction and building maintenance sectors.

Industry
Building Science & Construction Consulting

Attack summary

Severity: high — Confirmed exfiltration of significant business data (105 GB, 68k files) from a consulting firm; data published; likely includes sensitive client project information and proprietary consulting work.

The m3rx group claims to have exfiltrated 105 GB of data across approximately 68,000 files from HB Consultants. Data has been published.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Client project files
  • Consulting reports
  • Building assessments
  • Business records

What the group claims

+1 (514) 882-6463. HB Consultants is a consulting firm with over 45 years of experience specializing in Building Science. They offer services in roof consulting, pavement consulting, and building envelope consulting. Their dedicated team ensures clients receive the best and most accurate consulting services. The company caters to a diverse range of clients in the construction and building maintenance sectors Stolen: 105gb 68k files

Sources

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.

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Disclosure context

About m3rx

Based on the limited publicly available information, m3rx is an emerging ransomware group first observed in April 2026 with a relatively small victim count of eight organizations, suggesting they are either a newly formed operation or a smaller-scale criminal enterprise focused on financial gain. The group's origin and affiliations remain unclear, with no documented evidence from major security vendors or law enforcement agencies regarding their geographical base, operational structure, or whether they operate as an independent cell or as part of a larger ransomware-as-a-service ecosystem. Their attack methodology and specific technical capabilities have not been extensively documented by established threat intelligence sources, though their targeting pattern indicates a preference for English-speaking nations including Great Britain, Australia, and the United States, as well as operations in Switzerland and Italy, with victims spanning consumer services, business services, technology, and healthcare sectors. No major campaigns, high-profile victims, or significant ransoms have been publicly reported by CISA, FBI, Mandiant, or other reputable security researchers, likely due to the group's recent emergence and limited scope of operations. Given their recent first observation date and small victim count, m3rx appears to be in early operational stages with their current activity status and long-term viability remaining uncertain. The group has been linked to 26 public disclosures across our corpus. First observed on a leak site on April 29, 2026; most recent post June 11, 2026. The operation is currently active.

Timeline of this disclosure

  • June 11, 2026hbexperts-conseils.ca listed by m3rxon the group's public leak site

Other recent disclosures by m3rx

m3rx has been linked to 26 public victims on Darkfield. A sample of the most recent:

See the full m3rx dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 2,643 disclosures indexed across all operators we track. Geographically, hbexperts-conseils.ca is reported in Canada, a country with 278 ransomware disclosures in our corpus.

If your organisation is affected

A listing by m3rx means hbexperts-conseils.ca 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.
  • Monitor for the data appearing on m3rx'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.