CE
Ransomware Victim Healthcare

Centre Medical Crowley

Ransomware attack by Thegentlemen Β· Disclosed June 15, 2026 Β· πŸ‡¨πŸ‡¦ Canada

crowleymd.ca

Date Disclosed
Jun 15, 2026
2026
Threat Group
Thegentlemen
504 total victims
Industry
Healthcare

Incident Analysis

Centre Medical Crowley was targeted by Thegentlemen ransomware, one of the most active ransomware groups in our database with 504 confirmed victims globally. The attack was disclosed on June 15, 2026, when Centre Medical Crowley appeared on the group's dark web leak site.

Centre Medical Crowley is based in Canada , operating in the Healthcare sector. Canada ranks #2 globally for ransomware attacks, with 824 victims in our 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 β€” all factors that increase ransom payment pressure.

Thegentlemen 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: Jun 16, 2026 00:01 UTC.

Frequently Asked Questions

Was Centre Medical Crowley attacked by ransomware?

Yes. Centre Medical Crowley was listed as a victim of the Thegentlemen ransomware group on June 15, 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 Centre Medical Crowley?

Centre Medical Crowley was attacked by Thegentlemen ransomware. Thegentlemen is one of the most active ransomware groups, having claimed 504 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Centre Medical Crowley ransomware attack occur?

The ransomware attack on Centre Medical Crowley was disclosed on June 15, 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 Centre Medical Crowley ransomware attack?

The specific data stolen from Centre Medical Crowley 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, Centre Medical Crowley likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Thegentlemen attacks?

To defend against Thegentlemen 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.