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Ransomware victim disclosure

All victims

Collège Mont Notre-Dame de Sherbrooke

listed as Collge Mont Notre-Dame de Sherbrooke · Claimed by CMD ORGANIZATION · listed 7 days ago

37 GB
Data size
7d
Age
since listed · data leaked

Status timeline

  1. ListedAug 11, 2026
  2. Data leakeddate unknown

At a glance

Status
Data leaked
Country
Canada
Sector
Education
Listed on leak site
Aug 11, 2026
Data size
37 GB

About the victim

AI dossier — public-source company profile

Collège Mont Notre-Dame de Sherbrooke is a private secondary school for girls located in Sherbrooke, Québec. Operating for over 160 years, it specializes in international education with programs spanning arts, languages, and sports. The institution is an OSBL (non-profit organization) offering a unique pedagogy focused on female empowerment and success.

Industry
Secondary Education
Address
114, rue de la Cathédrale, Sherbrooke, Québec J1H 4M1, Canada
Founded
1864

Attack summary

Severity: high — Educational institution with confirmed exfiltration of 37 GB of data involving minors (secondary school for girls). Likely contains PII of students and staff; no encryption mentioned, data already published. Educational records of minors constitute sensitive personal information in Canada.

CMD ORGANIZATION claims to have exfiltrated 37 GB of data from the school. The group has published the data on its leak site with no ransom demand stated, suggesting a pure data extortion or harassment campaign.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Student records
  • Administrative files
  • Personal information
  • School operational data

What the group claims

Le Mont Notre-Dame is a private secondary school for girls located in Sherbrooke, specializing in international education. With over 160 years of experience, it offers a unique pedagogy that emphasizes female success and empowerment. The school provides a wide range of programs, including arts, languages, and sports, fostering creativity and engagement among its students.

The leak post

captured from the group's site
IT Security organization est. 2026.
##  [Stewart Belland & Associates Inc.](https://stewartbellandassociates.ca)
Stewart Belland & Associates Inc. (SBA) is a Civil Enforcement Agency licensed by the Province of Alberta. Operating since 1996, under the Alberta Civil Enforcement Act and Regulations, as a Civil Enforcement Agency we are legislated to enforce Civil Warrants. SBA retains the services of Provincial Licensed Bailiffs, who follow a compressive Rule of Conduct, in performing their functions throughout all jurisdictions within the Province of Alberta. 
We have 296 GB of downloaded data. 
Contact Group is a proudly Tasmanian company specializing in building services and multi-technology solutions. They offer award-winning services across various divisions, including electrical and communications, HVAC-R, infrastructure, fire, technology, security, plumbing, and facilities maintenance, ensuring a high-quality customer experience. Their intended clients span multiple sectors such as commercial, government, healthcare, education, and more. With over 35 years of experience, Contact Group is committed to excellence and sustainability in their operations. 
We have 3 TB of downloade…

Screenshot of the leak post

Leak screenshot for Collge Mont Notre-Dame de Sherbrooke

Sources

Source

Indexed 7 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 CMD ORGANIZATION

CMD ORGANIZATION is a ransomware group first observed in May 2026, with financial gain assessed as the primary motivation based on available indicators. Due to the extremely limited public reporting on this group, comprehensive technical attribution and operational details have not yet been documented by major threat intelligence vendors or government agencies such as CISA or the FBI. Based on available data, CMD ORGANIZATION has recorded a single known victim, with targeting concentrated in the United States and focused on the engineering sector, suggesting either a nascent operation in its early stages or a highly selective targeting methodology. No publicly documented information is currently available regarding their initial access vectors, encryption methods, extortion tactics, tooling, or affiliations with other known threat actors or ransomware-as-a-service ecosystems. No notable high-profile campaigns, law enforcement actions, or confirmed rebranding activity has been publicly attributed to this group at this time. CMD ORGANIZATION should be considered an emerging or low-visibility threat actor warranting continued monitoring as additional victims or technical indicators may surface and enable more comprehensive profiling by the security research community. The group has been linked to 18 public disclosures across our corpus. First observed on a leak site on May 14, 2026; most recent post August 11, 2026. The operation is currently active.

Timeline of this disclosure

  • August 11, 2026Collge Mont Notre-Dame de Sherbrooke listed by CMD ORGANIZATIONon the group's public leak site
Data size
37 GB

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 1,087 disclosures indexed across all operators we track. Geographically, Collge Mont Notre-Dame de Sherbrooke is reported in Canada, a country with 1,055 ransomware disclosures in our corpus.

If your organisation is affected

A listing by CMD ORGANIZATION means Collge Mont Notre-Dame de Sherbrooke 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 CMD ORGANIZATION'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.