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Cyber Threat
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Ransomware group

Trisec ransomware

3 victims listed on the Trisec leak site across 3 countries. Most recent disclosure .

Victims
3
0% of all tracked
Countries
3
Most: Italy
Sectors
3
Most: Technology
First seen
Feb 2024
In this database

ThreatAI analysis

Compiled from the ransomware.live profile for Trisec and from this database. Figures and technique mappings are quoted from the source data, not inferred.

Who Trisec is

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.

Recorded activity

Disclosures attributed to Trisec in this database run from February 2024 to February 2024, totalling 3 victims — 0% of everything tracked here. Trisec has listed victims in 3 countries in this database, most often Italy, followed by Sweden and Ireland. The sectors appearing most in its listings are Technology, Healthcare, Business Services.

YARA detection rules

trisec.yar 
/*
trisec ransomware
*/

rule trisec_Ransomnote
{
    meta:
        author = "ransomware.live"
        family = "ransomware.trisec"
        description = "Detects trisec ransomware ransom note or artifact"
        date = "2026-05-04"
        severity = 7
        score = 70

    strings:
        $name1 = "trisec" ascii nocase
        $name2 = "TRISEC" ascii
        $onion  = "trisec.onion" ascii nocase

    condition:
        any of them
}

Community-contributed rules for Trisec, reproduced as published. Test them against your own corpus before relying on them: rule quality and false-positive behaviour vary by author.

Threat actor analysis

Trisec has disclosed 3 victims on its leak site, 0% of all ransomware listings tracked in this database. Its earliest disclosure here dates to February 2024.

The group has listed organisations in 3 countries, most often in Italy (1 victims), followed by Sweden, Ireland.

By industry, its listings concentrate in Technology, Healthcare, Business Services — sectors that hold sensitive data or cannot tolerate long outages, both of which raise the pressure to pay.

Like most current ransomware operations, Trisec is likely to use double extortion: data is stolen before files are encrypted, and organisations that refuse to pay are named on the leak site with the stolen data as leverage.

Generated from public leak-site disclosures aggregated via the ransomware.live API and updated automatically.

Trisec victims 3

Organization Disclosed
aivi.it
ITItaly
ki.se
SESweden
www.cogans.ie
IEIreland

Frequently asked questions

What is Trisec ransomware?

Trisec is a ransomware threat group that has claimed 3 victims since its first known activity in February 2024. The group operates by infiltrating target networks, exfiltrating data, encrypting files, and threatening to publish stolen data on a dark web leak site if the ransom is not paid.

How many victims has Trisec attacked?

Trisec has claimed 3 victims in our database, representing 0% of all tracked ransomware attacks. The most targeted countries are Italy, Sweden, Ireland.

Which countries does Trisec target?

Trisec has attacked organizations in 3 countries. The top targeted countries are: Italy, Sweden, Ireland.

Which industries does Trisec target?

Trisec most frequently targets the Technology, Healthcare, Business Services sectors based on victim disclosures in our database.

Is Trisec still active?

Trisec's most recent victim disclosure in our database was on February 19, 2024. Ransomware groups frequently rebrand or go dormant; monitor this page and our ransomware map for the latest activity.