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Cyber Threat
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Ransomware victim Healthcare

ki.se

Listed by Trisec on · organisation based in Sweden

ki.se

Disclosed
Feb 19, 2024
Leak-site listing date
Threat group
Trisec
3 victims listed
Country
Sweden
#20 most targeted
Sector
Healthcare

ThreatAI analysis

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

About the Trisec group

Trisec is a Tunisian-origin ransomware group that emerged in February 2024, claiming affiliation with the Tunisian government and operating as both a financially motivated and state-sponsored mercenary group, exclusively recruiting Tunisian members and reporting nine victims in the first half of 2024. Trisec has listed 3 victims since February 2024.

Incident analysis

ki.se was listed by Trisec ransomware, a group with 3 victims recorded in this database. The listing appeared on the group's leak site on February 19, 2024.

ki.se is based in Sweden and operates in the Healthcare sector. Sweden ranks #20 worldwide for ransomware disclosures, with 150 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.

Trisec 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files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished.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 ki.se attacked by ransomware?

Yes. ki.se was listed as a victim of the Trisec ransomware group on February 19, 2024. The organisation is based in Sweden and operates in the Healthcare sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked ki.se?

ki.se was attacked by Trisec ransomware. Trisec is one of the most active ransomware groups, having claimed 3 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the ki.se ransomware attack occur?

The ransomware attack on ki.se was disclosed on February 19, 2024. 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 ki.se ransomware attack?

The specific data stolen from ki.se 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, ki.se likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Trisec attacks?

To defend against Trisec 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.