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Cyber Threat
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Ransomware victim Transportation/Logistics

Triathlon.group

Listed by Underground on · organisation based in Germany

triathlon.group

Disclosed
May 1, 2024
Leak-site listing date
Threat group
Underground
26 victims listed
Country
Germany
#2 most targeted
Sector
Transportation/Logistics

ThreatAI analysis

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

About the Underground group

Underground ransomware is deployed by the Russia-based RomCom group (Storm-0978) and has victimized companies across multiple industries since July 2023 by exploiting CVE-2023-36884, encrypting files without changing extensions and deleting Volume Shadow Copies and Windows event logs in double-extortion campaigns. Underground has listed 26 victims since May 2023.

Incident analysis

Triathlon.group was listed by Underground ransomware, a group with 26 victims recorded in this database. The listing appeared on the group's leak site on May 1, 2024.

Triathlon.group is based in Germany and operates in the Transportation/Logistics sector. Germany ranks #2 worldwide for ransomware disclosures, with 1,006 victims in this database.

Sector context. Logistics companies are targeted because supply chain disruption has cascading effects on customers and partners, amplifying pressure to pay ransoms quickly to restore operations.

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files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished.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

Yes. Triathlon.group was listed as a victim of the Underground ransomware group on May 1, 2024. The organisation is based in Germany and operates in the Transportation/Logistics sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Triathlon.group?

Triathlon.group was attacked by Underground ransomware. Underground is one of the most active ransomware groups, having claimed 26 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Triathlon.group ransomware attack occur?

The ransomware attack on Triathlon.group was disclosed on May 1, 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 Triathlon.group ransomware attack?

The specific data stolen from Triathlon.group 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 Transportation/Logistics organisation, Triathlon.group likely held sensitive business data, client information, and operational records.

How can organisations protect against Underground attacks?

To defend against Underground 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.