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Ransomware Victim Telecommunication

LeoVegas AB

Ransomware attack by Hellcat · Disclosed April 5, 2025 · 🇸🇪 Sweden

leovegasgroup.com

Date Disclosed
Apr 5, 2025
2025
Threat Group
Hellcat
20 total victims
Country
🇸🇪 Sweden
Industry
Telecommunication

ThreatAI Analysis

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

About the Hellcat group

HellCat is a ransomware-as-a-service group that formed in Q4 2024 and quickly became notable for high-profile attacks against Schneider Electric, Telefónica, and Israel's Knesset, primarily gaining initial access via stolen Jira credentials harvested by infostealer malware, targeting critical infrastructure and government entities. Hellcat has listed 20 victims since October 2024.

Incident Analysis

LeoVegas AB was targeted by Hellcat ransomware, one of the most active ransomware groups in our database with 20 confirmed victims globally. The attack was disclosed on April 5, 2025, when LeoVegas AB appeared on the group's dark web leak site.

LeoVegas AB is based in Sweden , operating in the Telecommunication sector. Sweden ranks #23 globally for ransomware attacks, with 130 victims in our database.

Sector context: Organisations in this sector hold valuable data and operational systems that ransomware groups seek to exploit for financial gain through encryption and data exfiltration.

Hellcat typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats — paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Sep 6, 2026 22:00 UTC.

Frequently Asked Questions

Was LeoVegas AB attacked by ransomware?

Yes. LeoVegas AB was listed as a victim of the Hellcat ransomware group on April 5, 2025. The organisation is based in Sweden and operates in the Telecommunication sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked LeoVegas AB?

LeoVegas AB was attacked by Hellcat ransomware. Hellcat is one of the most active ransomware groups, having claimed 20 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the LeoVegas AB ransomware attack occur?

The ransomware attack on LeoVegas AB was disclosed on April 5, 2025. 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 LeoVegas AB ransomware attack?

The specific data stolen from LeoVegas AB 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 Telecommunication organisation, LeoVegas AB likely held sensitive business data, client information, and operational records.

How can organisations protect against Hellcat attacks?

To defend against Hellcat 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.