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Cyber Threat
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Ransomware victim Healthcare

Minidoka Memorial Hospital

Listed by Blackwater on · organisation based in United States

minidokamemorial.org

Disclosed
May 2, 2026
Leak-site listing date
Threat group
Blackwater
11 victims listed
Country
United States
#1 most targeted
Sector
Healthcare

ThreatAI analysis

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

About the Blackwater group

Blackwater is a ransomware group that first surfaced in early 2026, combining file encryption with data theft and targeting healthcare organizations, with known victims including Minidoka Memorial Hospital in Idaho. Blackwater has listed 11 victims since April 2026.

Incident analysis

Minidoka Memorial Hospital was listed by Blackwater ransomware, a group with 11 victims recorded in this database. The listing appeared on the group's leak site on May 2, 2026.

Minidoka Memorial Hospital is based in United States and operates in the Healthcare sector. United States ranks #1 worldwide for ransomware disclosures, with 10,141 victims in this 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.

Blackwater typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was Minidoka Memorial Hospital attacked by ransomware?

Yes. Minidoka Memorial Hospital was listed as a victim of the Blackwater ransomware group on May 2, 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 Minidoka Memorial Hospital?

Minidoka Memorial Hospital was attacked by Blackwater ransomware. Blackwater is one of the most active ransomware groups, having claimed 11 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Minidoka Memorial Hospital ransomware attack occur?

The ransomware attack on Minidoka Memorial Hospital was disclosed on May 2, 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 Minidoka Memorial Hospital ransomware attack?

The specific data stolen from Minidoka Memorial Hospital 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, Minidoka Memorial Hospital likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Blackwater attacks?

To defend against Blackwater 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.