DisclosureLens
GLOBALMalwareEnergy & UtilitiesUtilitiesRansomwareHelixRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

DELEK US HOLDINGS, INC.

bd_b8b4ca1bebf0298b · schema v1 · pii pii-v2

Severity

High

Discovered

—

Filed

Aug 19, 2026

To disclose

—

Affected

Not disclosed

Linked

2 records

Confidence

50%
Full breach record for DELEK US HOLDINGS, INC. →2 incidents on file

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Helix on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.

Group activity: Energy & UtilitiesDiscovered: 2026-08-19

Source: Ransomware.live

Post text · scraped from the leak site

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

Incident timeline — mostly unverified

? — ?

Breach window unknown

Aug 19, 2026

Claim posted

—

Corroborated · see linked filings

This record's own dates cannot anchor compliance clocks; see the linked filings.

Claim → filing

—

Compliance clock

Not assessable

This leak-site claim is one of 2 records about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source ceiling

  • actor name
  • victim claim
  • ransom/leak status
  • discovery date
  • materiality
  • notification
  • affected count
  • confirmed data types
  • compliance clock

The ✕ fields stay blank until a regulatory filing or victim disclosure lands.

About this group

helix

17 victims claimed globally17 tracked hereFull profile →

Delek US Holdings, Inc. data breach claim (2026) — unverified leak-site allegation · DisclosureLens