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Cyber Threat
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Ransomware victim Healthcare

Assiniboine Dental Group

Listed by Interlock on · organisation based in Canada

assiniboinedentalgroup.com

Disclosed
Nov 10, 2026
Leak-site listing date
Threat group
Interlock
157 victims listed
Country
Canada
#3 most targeted
Sector
Healthcare

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Interlock. Figures and technique mappings are quoted from the source data, not inferred.

About the Interlock group

Interlock is a ransomware group first observed in September 2024 that targets critical infrastructure sectors including healthcare, government, education, and technology across North America and Europe using double-extortion, with 57+ claimed victims including a major US dialysis provider exposing over two million patient records. Interlock has listed 140 victims since December 2023.

Vulnerabilities Interlock is recorded exploiting

1 of these 1 are in the CISA Known Exploited Vulnerabilities catalog, 1 of them recorded by CISA as used in ransomware campaigns. CVEs attributed to Interlock across its reported activity. There is no indication that any of these was involved in the Assiniboine Dental Group incident — the source data does not record an entry point.

Incident analysis

Assiniboine Dental Group was listed by Interlock ransomware, a group with 157 victims recorded in this database. The listing appeared on the group's leak site on November 10, 2026.

Assiniboine Dental Group is based in Canada and operates in the Healthcare sector. Canada ranks #3 worldwide for ransomware disclosures, with 1,009 victims in this database.

Sector context. Healthcare organisations are high-value ransomware targets because patient data is extremely sensitive, regulatory penalties for breaches are severe, and operational downtime can threaten patient safety — all factors that increase ransom payment pressure.

Interlock typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was Assiniboine Dental Group attacked by ransomware?

Yes. Assiniboine Dental Group was listed as a victim of the Interlock ransomware group on November 10, 2026. The organisation is based in Canada and operates in the Healthcare sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Assiniboine Dental Group?

Assiniboine Dental Group was attacked by Interlock ransomware. Interlock is one of the most active ransomware groups, having claimed 157 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Assiniboine Dental Group ransomware attack occur?

The ransomware attack on Assiniboine Dental Group was disclosed on November 10, 2026. 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 Assiniboine Dental Group ransomware attack?

The specific data stolen from Assiniboine Dental Group 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 Healthcare organisation, Assiniboine Dental Group likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Interlock attacks?

To defend against Interlock 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.