Skip to content

Blackwater

Ransomware Group1 claimLast activity:

Overview

What type of group is it?

Blackwater is a ransomware and data-extortion operation that emerged publicly in March 2026. No high-confidence state sponsorship, organizational origin or confirmed rebrand has been established.

Activity and targeting

Its public claims span health care and other sectors in multiple countries, suggesting financially motivated, opportunistic targeting rather than an established regional focus. Blackwater’s Minidoka Memorial Hospital claim remains unverified by the affected organization, and confidence in individual listings should be assessed separately from the group’s public existence.

Methods and operational characteristics

Public reporting primarily documents leak-site victim listings, alleged data theft, payment deadlines and publication threats. Technical reporting on initial access, persistence, malware deployment and encryption remains limited.

Incident claim

Minidoka Memorial Hospital cyber incident

View public claim
Incident date: Source: otherPublished: Discovered:

Claim details

DataBreaches.net documented a Blackwater leak-site listing added April 17 that named Minidoka Memorial Hospital, alleged possession of about 2.33 million files totaling roughly 576.6 GB and threatened publication after April 24. The report said Blackwater supplied no proof and did not state that it encrypted data; the hospital has not confirmed the claim.

Impacted organizations

Impacted locations

Sources