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Ransomware Victim Energy & Utilities

Delek US

Ransomware attack by Helix · Disclosed August 19, 2026 · 🇺🇸 United States

delekus.com

Date Disclosed
Aug 19, 2026
2026
Threat Group
Helix
8 total victims
Country
🇺🇸 United States
Industry
Energy & Utilities

ThreatAI Analysis

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

Helix listed Delek US on its dark web leak site on 19 August 2026. Delek US is based in United States and operates in the Energy & Utilities sector.

About Delek US

Delek US is live. T1 unlocks in 12 hours, then 24 hours per remaining tier.

Source record: ransomware.live

About the Helix group

Helix has listed 5 victims since August 2026.

Incident Analysis

Delek US was targeted by Helix ransomware, one of the most active ransomware groups in our database with 8 confirmed victims globally. The attack was disclosed on August 19, 2026, when Delek US appeared on the group's dark web leak site.

Delek US is based in United States , operating in the Energy & Utilities sector. United States ranks #1 globally for ransomware attacks, with 9,421 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.

Helix 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 16:00 UTC.

Frequently Asked Questions

Was Delek US attacked by ransomware?

Yes. Delek US was listed as a victim of the Helix ransomware group on August 19, 2026. The organisation is based in United States and operates in the Energy & Utilities sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Delek US?

Delek US was attacked by Helix ransomware. Helix is one of the most active ransomware groups, having claimed 8 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Delek US ransomware attack occur?

The ransomware attack on Delek US was disclosed on August 19, 2026. 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 Delek US ransomware attack?

The specific data stolen from Delek US 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 & Utilities organisation, Delek US likely held sensitive business data, client information, and operational records.

How can organisations protect against Helix attacks?

To defend against Helix 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.