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Ransomware Victim Healthcare

Interim HealthCare (Oklahoma and Tulsa)

Ransomware attack by Genesis · Disclosed August 10, 2026 · 🇺🇸 United States

interimhealthcare.com

Date Disclosed
Aug 10, 2026
2026
Threat Group
Genesis
115 total victims
Country
🇺🇸 United States
Industry
Healthcare

ThreatAI Analysis

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

Genesis listed Interim HealthCare (Oklahoma and Tulsa) on its dark web leak site on 10 August 2026; the health care provider, based in the United States, operates in this sector.

About the Genesis group

Genesis is an emerging ransomware group first observed in late 2025, targeting small to mid-sized US organizations across healthcare, retail, financial services, legal, and manufacturing using double-extortion tactics, focusing heavily on data exfiltration and public leaking. Genesis has listed 109 victims since May 2024.

Incident Analysis

Interim HealthCare (Oklahoma and Tulsa) was targeted by Genesis ransomware, one of the most active ransomware groups in our database with 115 confirmed victims globally. The attack was disclosed on August 10, 2026, when Interim HealthCare (Oklahoma and Tulsa) appeared on the group's dark web leak site.

Interim HealthCare (Oklahoma and Tulsa) is based in United States , operating in the Healthcare sector. United States ranks #1 globally for ransomware attacks, with 9,416 victims in our database.

Sector context: Healthcare organisations are high-value ransomware targets because patient data is extremely sensitive, regulatory penalties for breaches are severe, and operational downtime can threaten patient safety — all factors that increase ransom payment pressure.

Genesis 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 5, 2026 20:00 UTC.

Frequently Asked Questions

Was Interim HealthCare (Oklahoma and Tulsa) attacked by ransomware?

Yes. Interim HealthCare (Oklahoma and Tulsa) was listed as a victim of the Genesis ransomware group on August 10, 2026. The organisation is based in United States and operates in the Healthcare sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Interim HealthCare (Oklahoma and Tulsa)?

Interim HealthCare (Oklahoma and Tulsa) was attacked by Genesis ransomware. Genesis is one of the most active ransomware groups, having claimed 115 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Interim HealthCare (Oklahoma and Tulsa) ransomware attack occur?

The ransomware attack on Interim HealthCare (Oklahoma and Tulsa) was disclosed on August 10, 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 Interim HealthCare (Oklahoma and Tulsa) ransomware attack?

The specific data stolen from Interim HealthCare (Oklahoma and Tulsa) 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 Healthcare organisation, Interim HealthCare (Oklahoma and Tulsa) likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Genesis attacks?

To defend against Genesis 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.