Cyber Threat Intelligence
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Ransomware Victim Energy

LaSen

Ransomware attack by Eldorado · Disclosed December 16, 2024 · 🇺🇸 United States

lasen.com

Date Disclosed
Dec 16, 2024
2024
Threat Group
Eldorado
112 total victims
Country
🇺🇸 United States
Industry
Energy

ThreatAI Analysis

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

About the Eldorado group

In September The El Dorado ransomware group have been rebrand as BlackLock Eldorado has listed 112 victims since October 2023.

Incident Analysis

LaSen was targeted by Eldorado ransomware, one of the most active ransomware groups in our database with 112 confirmed victims globally. The attack was disclosed on December 16, 2024, when LaSen appeared on the group's dark web leak site.

LaSen is based in United States , operating in the Energy sector. United States ranks #1 globally for ransomware attacks, with 9,532 victims in our database.

Sector context: Energy sector attacks can have critical infrastructure implications. Ransomware on operational technology (OT) networks can disrupt power generation and distribution, elevating the urgency of recovery.

Eldorado 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 18, 2026 22:00 UTC.

Frequently Asked Questions

Was LaSen attacked by ransomware?

Yes. LaSen was listed as a victim of the Eldorado ransomware group on December 16, 2024. The organisation is based in United States and operates in the Energy sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked LaSen?

LaSen was attacked by Eldorado ransomware. Eldorado is one of the most active ransomware groups, having claimed 112 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the LaSen ransomware attack occur?

The ransomware attack on LaSen was disclosed on December 16, 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 LaSen ransomware attack?

The specific data stolen from LaSen 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 Energy organisation, LaSen likely held sensitive business data, client information, and operational records.

How can organisations protect against Eldorado attacks?

To defend against Eldorado 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.