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Ransomware Victim Public Sector

Montreal North

Ransomware attack by Rhysida Β· Disclosed January 4, 2025 Β· πŸ‡¨πŸ‡¦ Canada

https://montreal.ca/montreal-nord

Date Disclosed
Jan 4, 2025
2025
Threat Group
Rhysida
195 total victims
Country
πŸ‡¨πŸ‡¦ Canada
Industry
Public Sector

Incident Analysis

Montreal North was targeted by Rhysida ransomware, one of the most active ransomware groups in our database with 195 confirmed victims globally. The attack was disclosed on January 4, 2025, when Montreal North appeared on the group's dark web leak site.

Montreal North is based in Canada , operating in the Public Sector sector. Canada ranks #2 globally for ransomware attacks, with 874 victims in our database.

Sector context: Organisations in this sector hold valuable data and operational systems that ransomware groups seek to exploit for financial gain through encryption and data exfiltration.

Rhysida typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats β€” paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Aug 1, 2026 04:00 UTC.

Frequently Asked Questions

Was Montreal North attacked by ransomware?

Yes. Montreal North was listed as a victim of the Rhysida ransomware group on January 4, 2025. The organisation is based in Canada and operates in the Public Sector sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Montreal North?

Montreal North was attacked by Rhysida ransomware. Rhysida is one of the most active ransomware groups, having claimed 195 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Montreal North ransomware attack occur?

The ransomware attack on Montreal North was disclosed on January 4, 2025. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the Montreal North ransomware attack?

The specific data stolen from Montreal North has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Public Sector organisation, Montreal North likely held sensitive business data, client information, and operational records.

How can organisations protect against Rhysida attacks?

To defend against Rhysida and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.