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Ransomware victim disclosure

All victims

Huron Regional Medical Center

Claimed by Beast · listed 11 months ago

$23.83
Ransom
demanded
10m
Age
since listed · data leaked

Status timeline

  1. ListedAug 21, 2025
  2. Data leakeddate unknown

At a glance

Group
Beast
Status
Data leaked
Listed on leak site
Aug 21, 2025
Ransom demanded
$23.83

About the victim

AI dossier — public-source company profile

Huron Regional Medical Center (HRMC) is a regional hospital located in Huron, South Dakota, providing a broad range of inpatient and outpatient healthcare services including emergency care, maternity, surgery, oncology, radiology, dialysis, home health, and hospice. It operates a physicians clinic, orthopedic services, and numerous specialty departments serving the Huron and surrounding communities. HRMC also supports a charitable foundation and community outreach programs.

Industry
Regional Hospital & Healthcare Services
Address
Huron, SD, United States

Attack summary

Severity: critical — The victim is a regional medical center in the United States; data published by a ransomware group from a healthcare provider almost certainly includes regulated patient PII and protected health information (PHI) subject to HIPAA, meeting the threshold for critical severity.

The Beast ransomware group claims to have published data from Huron Regional Medical Center, with the disclosure status marked as 'data_published'. The leak post context suggests exfiltration and publication of victim data, though the specific data types and volume are not detailed in the truncated post.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Patient records
  • Medical/clinical data
  • Billing and insurance information
  • Employee/HR records
  • Administrative documents

What the group claims

HRMC is a private, not-for-profit organization. When the ownership of Huron's hospital passed from the Fransciscan Sisters to a locally-owned, private corporation (Huron Regional Medical Center, Inc.) in 1978, those involved in the purchase wanted to ensure Huron's community hospital would be governed by a board of directors reflecting a broad-base of the community. The volunteer board consists of three members recommended by the medical staff, one recommended by the City of Huron and one recommended by the Beadle County Commission. The other board members are elected at-large. Each board member is elected for a three-year term and can serve up to three consecutive terms. The property, funds, affairs and business of HRMC are managed by the board of directors, which is vested with the powers and authority conferred by the laws of South Dakota.

The leak post

captured from the group's site
[ 2fORM Architecture specializes in innovative sustainable architecture, offering design services for residential, commercial, and interior projects. Their portfolio includes a diverse range of developments, such as multi-family housing, health care facilities, and various remodels. The company aims to serve clients in the Pacific Northwest, including individual homeowners, businesses, and institutions. With a commitment to sustainability and creativity, 2fORM Architecture enhances the built environment through thoughtful design. ](http://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/2form_architecture)[ ACMARK s r o is a company that operates in the Repair Services industry. It employs 10to19 people and has 1Mto5M of revenue. The company is headquartered in Brno, South Moravian, Czech Republic. ](http://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/acmark)[ AJU Pharm Co., Ltd. is a prominent South Korean total healthcare company founded in 1953. For over 70 years, it has evolved from a manufacturer of raw materials into a global pharmaceutical group specializing in prescription drugs, medical devices, and health supplements P U B L I S H…

Screenshot of the leak post

Leak screenshot for Huron Regional Medical Center

Sources

Source

Indexed 11 months 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.

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Disclosure context

About beast

The Beast ransomware group is a relatively new threat actor that emerged in July 2025, operating with apparent financial motivations through their ransomware campaigns. With limited public documentation available from major security agencies, the group has demonstrated activity primarily targeting victims across the United States, United Kingdom, Brazil, South Korea, and Argentina, accumulating approximately 65 known victims since their emergence. Their targeting pattern shows a focus on healthcare organizations, manufacturing companies, educational institutions, and construction firms, suggesting an opportunistic approach rather than highly specialized sector expertise. The group's recent emergence means there is insufficient public intelligence from CISA, FBI, Mandiant, or other established security researchers regarding their specific attack methodologies, initial access vectors, or technical capabilities. Given the timeline of their first observation in mid-2025, Beast represents an active and emerging threat with their current operational status remaining unclear due to limited threat intelligence reporting from authoritative sources. The group has been linked to 104 public disclosures across our corpus. First observed on a leak site on July 29, 2025; most recent post June 11, 2026. The operation is currently active.

Timeline of this disclosure

  • August 21, 2025Huron Regional Medical Center listed by beaston the group's public leak site
Ransom demanded
$23.83

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,600 disclosures indexed across all operators we track. Geographically, Huron Regional Medical Center is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by beast means Huron Regional Medical Center appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on beast's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.