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Cyber Threat
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Ransomware victim Education

College O'Sullivan de Québec

Listed by Kairos on · organisation based in Canada

osullivan.edu

Disclosed
Jul 20, 2026
Leak-site listing date
Threat group
Kairos
107 victims listed
Country
Canada
#4 most targeted
Sector
Education

ThreatAI analysis

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

About College O'Sullivan de Québec

Collège O'Sullivan de Québec offers a variety of training programs both in-class and online, focusing on fields such as administration, insurance, office management, IT, web development, and marketing. The institution aims to equip students with the skills needed for the job market and higher education through quality resources and personalized services. Their target clients include secondary school students, international students, and businesses seeking tailored training solutions. With over 80 years of history, the college is committed to fostering professional and personal competencies among its graduates.

Source record: ransomware.live

About the Kairos group

Kairos is a data extortion group active since late 2024 that focuses solely on data theft with no encryption, primarily targeting small-to-mid-sized organizations in healthcare, manufacturing, and business services in the US, purchasing initial access from brokers and demanding Bitcoin payments. Kairos has listed 100 victims since June 2024.

Incident analysis

College O'Sullivan de Québec was listed by Kairos ransomware, a group with 107 victims recorded in this database. The listing appeared on the group's leak site on July 20, 2026.

College O'Sullivan de Québec is based in Canada and operates in the Education sector. Canada ranks #4 worldwide for ransomware disclosures, with 988 victims in this database.

Sector context. Educational institutions often have under-resourced IT security teams and hold large amounts of student and faculty personal data, making them attractive targets for ransomware groups.

Kairos 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files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished.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 College O'Sullivan de Québec attacked by ransomware?

Yes. College O'Sullivan de Québec was listed as a victim of the Kairos ransomware group on July 20, 2026. The organisation is based in Canada and operates in the Education sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked College O'Sullivan de Québec?

College O'Sullivan de Québec was attacked by Kairos ransomware. Kairos is one of the most active ransomware groups, having claimed 107 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the College O'Sullivan de Québec ransomware attack occur?

The ransomware attack on College O'Sullivan de Québec was disclosed on July 20, 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 College O'Sullivan de Québec ransomware attack?

The specific data stolen from College O'Sullivan de Québec 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 Education organisation, College O'Sullivan de Québec likely held student and faculty personal data and academic records.

How can organisations protect against Kairos attacks?

To defend against Kairos 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.