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arietishealth.com

Claimed by Dispossessor · listed 2 years ago

27m
Age
since listed · data leaked

Status timeline

  1. ListedApr 19, 2024
  2. Data leakeddate unknown

At a glance

Group
Dispossessor
Status
Data leaked
Country
United States
Sector
Healthcare
Listed on leak site
Apr 19, 2024

About the victim

AI dossier — public-source company profile

Arietis Health is a healthcare revenue cycle management (RCM) and medical billing company that provides end-to-end solutions to medical practices and healthcare organizations. They offer services including coding, accounts receivable management, worker's compensation, and auto claim management, with operations in the U.S. and India. The company positions itself as a patient-centered, technology-driven provider.

Industry
Healthcare Revenue Cycle Management (RCM) & Medical Billing
Address
239-610-0775 (phone only; no physical address disclosed on public site)

Attack summary

Severity: high — Healthcare RCM companies handle sensitive patient health information (PHI), claims data, and billing records on behalf of multiple client organizations. Confirmed exfiltration of such data at scale poses significant regulatory (HIPAA) and operational risk to downstream healthcare providers and patients, even though the leak post itself is minimal.

The ransomware group Dispossessor has published data allegedly exfiltrated from arietishealth.com. The leak post provides no detail on the scope of data taken or operational impact claims.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Patient billing records
  • Healthcare claims data
  • Revenue cycle management records
  • Potentially client healthcare organization data

What the group claims

arietishealth.com

Sources

Source

Indexed 2 years 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 Dispossessor

Dispossessor is a recently emerged ransomware group that began operations in April 2024, primarily motivated by financial gain through extortion campaigns targeting organizations across multiple sectors. The group's country of origin and potential affiliations with other ransomware operations remain unclear based on publicly available intelligence, and there is insufficient documented evidence to confirm whether they operate as a Ransomware-as-a-Service model or as an independent entity. Given the group's recent emergence, detailed technical analysis of their attack methodology, specific initial access vectors, encryption techniques, and data exfiltration practices have not been extensively documented by major cybersecurity firms or law enforcement agencies, though their targeting patterns suggest they employ typical ransomware deployment strategies against business services, healthcare, technology, financial services, and manufacturing sectors. The group has reportedly compromised 344 victims since their emergence, with primary targeting focus on organizations in the United States, Canada, France, the United Kingdom, and India, indicating a preference for English-speaking and Western European targets. As of current reporting, Dispossessor appears to remain active with no documented law enforcement disruption actions or confirmed rebranding activities, though the limited timeframe since their emergence in April 2024 means their operational longevity and persistence remain to be determined. The group has been linked to 344 public disclosures across our corpus. First observed on a leak site on April 19, 2024; most recent post August 11, 2024. The operation is currently inactive.

Timeline of this disclosure

  • April 19, 2024arietishealth.com listed by Dispossessoron the group's public leak site

Other recent disclosures by Dispossessor

Dispossessor has been linked to 344 public victims on Darkfield. A sample of the most recent:

See the full Dispossessor dossier →

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, arietishealth.com is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Dispossessor means arietishealth.com 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 Dispossessor'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.