Was Collge Mont Notre-Dame de Sherbrooke hit by ransomware?

Collge Mont Notre-Dame de Sherbrooke was listed by the cmdorganization 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 cmdorganization ransomware group?

cmdorganization 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 Collge Mont Notre-Dame de Sherbrooke breach?

cmdorganization published data attributed to Collge Mont Notre-Dame de Sherbrooke. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Collège Mont Notre-Dame de Sherbrooke

listed as Collge Mont Notre-Dame de Sherbrooke · Claimed by Cmdorganization · listed 5 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJul 30, 2026
Data leakeddate unknown

At a glance

Group: Cmdorganization
Status: Data leaked
Country: Canada
Sector: Education
Listed on leak site: Jul 30, 2026

About the victim

AI dossier — public-source company profile

Collège Mont Notre-Dame is a private all-girls secondary school located in Sherbrooke, Quebec, with over 160 years of history. It specializes in international education programs across arts, languages, and sports, serving approximately 400–500 students with modern facilities and a commitment to female empowerment and academic excellence.

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

Attack summary

Severity: medium — Educational institution with potential access to minor personal information (student records, family contact details, health/psychoeducational assessments). Data published status suggests exfiltration occurred, but no explicit proof inventory or ransom demand is documented, and no confirmation of sensitive data categories.

The cmdorganization group claims to have conducted an attack on the school, though the leaked post does not explicitly detail whether data was exfiltrated, encrypted, or both. No specific operational impact or ransom demand is stated.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Student records
Administrative files
Financial information
Employee 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. Its state-of-the-art facilities and commitment to student life create a warm and welcoming environment for learning

Sources

Victim sitewww.lemont.ca

Source

Indexed 5 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 cmdorganization

Based on the limited available information, cmdorganization is an obscure ransomware group first observed in May 2026 with only three documented victims to date, suggesting either a newly emerged threat actor or a small-scale operation with primarily financial motivations. The group's targeting pattern shows a geographic focus on Canada, the United States, and Italy, with a sectoral preference for healthcare and construction industries, though the limited victim count makes it difficult to establish definitive targeting criteria. Due to the recent emergence and low victim count, there is insufficient publicly documented information from major cybersecurity firms or law enforcement agencies regarding their specific attack methodologies, encryption techniques, or operational structure. No notable high-profile campaigns or significant ransoms have been publicly reported for this group, likely due to their limited operational scope and recent emergence. Current intelligence suggests the group remains active but operates at a relatively small scale compared to established ransomware families. The group has been linked to 41 public disclosures across our corpus. First observed on a leak site on May 2, 2026; most recent post July 30, 2026. The operation is currently active.

Also tracked as: cmd organization.

Timeline of this disclosure

July 30, 2026Collge Mont Notre-Dame de Sherbrooke listed by cmdorganizationon the group's public leak site

Other recent disclosures by cmdorganization

cmdorganization has been linked to 41 public victims on Darkfield. A sample of the most recent:

See the full cmdorganization dossier →

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 1,085 disclosures indexed across all operators we track. Geographically, Collge Mont Notre-Dame de Sherbrooke is reported in Canada, a country with 316 ransomware disclosures in our corpus.

If your organisation is affected

A listing by cmdorganization 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 cmdorganization'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.