Disclosure context

About blackwater

Based on the limited available data, Blackwater is an obscure ransomware operation that first emerged in April 2026, with only one documented victim to date, suggesting either a very new or small-scale financially motivated cybercriminal group. The group appears to operate primarily in Turkey, specifically targeting the healthcare sector based on their singular known attack. Due to the extremely limited public documentation and recent emergence timeframe, detailed information about their attack methodology, tools, encryption techniques, or operational structure remains unavailable from established threat intelligence sources such as CISA, FBI, or major security research firms. No notable high-profile campaigns, significant ransoms, or law enforcement actions have been publicly documented against this group. Given the recent April 2026 first observation date and lack of comprehensive threat intelligence reporting, the current operational status and capabilities of Blackwater remain largely unknown to the broader cybersecurity community. The group has been linked to 6 public disclosures across our corpus. First observed on a leak site on April 12, 2026; most recent post May 2, 2026. The operation is currently active.

Timeline of this disclosure

May 2, 2026Minidoka Memorial Hospital listed by blackwateron the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, Minidoka Memorial Hospital is reported in US, a country with 2,713 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

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Minidoka Memorial Hospital

Claimed by blackwater · listed 19 days ago

18d

Age

since listed · data leaked

Status timeline

Listed
May 2, 2026
Data leaked

At a glance

Group: blackwater
Status: Data leaked
Country: US
Sector: Healthcare
Listed on leak site: May 2, 2026

About the victim

AI dossier — public-source company profile

Minidoka Memorial Hospital is a rural community hospital located in Rupert, Idaho, providing a broad range of healthcare services including emergency response, surgery, radiology, orthopedics, ENT, podiatry, respiratory therapy, and a rural health clinic. The facility serves the Minidoka County area and operates associated services such as Countryside Care & Rehab and an ambulance service. It is a smaller regional hospital emphasizing patient-first care for its local community.

Industry: Rural & Community Hospital Healthcare
Address: 1224 8th Street, Rupert, ID 83350

Attack summary

Severity: critical — The victim is a healthcare provider, meaning any exfiltrated data is highly likely to include protected health information (PHI) and PII regulated under HIPAA. The disclosed status is 'data_published' and publication of data is threatened, making this a critical-severity incident involving regulated medical data.

The ransomware group Blackwater claims to have compromised Minidoka Memorial Hospital and states that data will be published after 7 days, indicating exfiltration of data. No ransom amount or specific data categories were disclosed in the post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Patient health records (inferred)
Personal identifiable information (inferred)
Hospital operational data (inferred)

What the group claims

Data will be published after 7 days.

The leak post

captured from the group's site

Blog BLACKWATER Compass Housing Alliance Publicated at 2026-04-30 09:22:58 Compass Housing Alliance is dedicated to developing and providing essential services, shelter, and affordable housing to ensure that everyone in the community has a safe place to call home. See more Shenzhen Gongjin Electronics Publicated at 2026-04-29 11:29:44 confidential information, developments, reports and all internal company data : http://ucfhnoihzgx4wz4beyzfxnh46cs37r4zbq627xyctykpatruvmghbyqd.onion/s/e292180d38d92fe2/ See more Grupo EBD Publicated at 2026-04-17 23:05:20 data download link http://ucfhnoihzgx4wz4beyzfxnh46cs37r4zbq627xyctykpatruvmghbyqd.onion/s/95f46e8106995901/ See more Minidoka Memorial Hospital Publicated at 2026-04-17 21:50:22 Data will be published after 7 days. See more medical-park Publicated at 2026-03-20 10:20:42 all internal and confidential company data and data of all clients: http://ucfhnoihzgx4wz4beyzfxnh46cs37r4zbq627xyctykpatruvmghbyqd.onion/s/6faa99933c9fef57/ See more

Sources

Source

Indexed 19 days ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.