Trisec_Cyberoutlaw is an emerging ransomware group first observed in February 2024, operating with apparent financial motivations based on their targeting patterns across multiple countries and sectors. The group's origin and affiliations remain unclear due to limited public documentation from major threat intelligence sources, though their relatively small victim count of three organizations suggests they are either a nascent operation or a smaller-scale independent group rather than a well-established ransomware-as-a-service operation. Their attack methodology details are not well-documented in public threat intelligence reports, though their targeting spans diverse sectors including business services, healthcare, and technology across Italy, Sweden, and Ireland, indicating they may employ opportunistic rather than highly specialized attack vectors. Notable campaigns and specific high-profile victims have not been extensively documented by major cybersecurity firms or law enforcement agencies, likely due to the group's recent emergence and limited operational scope. The group's current operational status remains unclear given the lack of comprehensive public reporting on their activities beyond basic victim statistics and geographic targeting patterns. The group has been linked to 3 public disclosures across our corpus. First observed on a leak site on February 16, 2024; most recent post February 19, 2024. The operation is currently inactive.
Sector and geography
This disclosure adds to ransomware activity in the Healthcare sector, which has 2,600 disclosures indexed across all operators we track. Geographically, ki.se is reported in Sweden, a country with 111 ransomware disclosures in our corpus.
If your organisation is affected
A listing by Trisec_Cyberoutlaw means ki.se appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.
- Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
- Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
- Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
- Report the incident to your national CERT, CERT-SE (Sweden), as required for your jurisdiction.
- Monitor for the data appearing on Trisec_Cyberoutlaw's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.
How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.
