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Ransomware victim disclosure

All victims

Corizon Healthcare

Claimed by Royal · listed 3 years ago

39m
Age
since listed · data leaked

Status timeline

  1. ListedApr 3, 2023
  2. Data leakeddate unknown

At a glance

Group
Royal
Status
Data leaked
Listed on leak site
Apr 3, 2023

About the victim

AI dossier — public-source company profile

Corizon Health (formerly Correctional Medical Services and Prison Health Services) is a private company that provides healthcare services to incarcerated individuals in correctional facilities across the United States. It is one of the largest private prison healthcare providers in the country, serving state and local government correctional systems. The company manages medical, dental, and mental health services for inmates.

Industry
Correctional / Prison Healthcare Services
Employees
1001-5000
Founded
1970

Attack summary

Severity: critical — The disclosed data includes protected health information (PHI) of incarcerated individuals, which is regulated under HIPAA, combined with legal records. This constitutes exfiltration of sensitive medical and personally identifiable data at scale for a vulnerable population, meeting the critical threshold.

The Royal ransomware group claims to have exfiltrated data from Corizon Health, including legal documents and prisoner health and treatment records. The group has published the data and describes the exfiltrated content as voluminous.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Prisoner medical/health records
  • Legal documents
  • Treatment records
  • Inmate personal information

What the group claims

Corizon Health (CMS and PHS in the past) is a private prison healthcare provider with a very interesting history. The data we took from them is not less interesting. Tons of law docs and other stuff about prisoners' health and their treatment in the institution.You are welcome!

Sources

Source

Indexed 3 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 Royal

Royal is a financially motivated ransomware group that emerged in November 2022, quickly establishing itself as a significant threat with over 200 documented victims across multiple sectors. The group is believed to operate independently rather than as a ransomware-as-a-service model, though their exact country of origin remains unclear based on publicly available intelligence. Royal primarily gains initial access through phishing campaigns and exploitation of remote desktop protocols, subsequently deploying custom ransomware that encrypts victim files while exfiltrating sensitive data for double extortion tactics. The group has demonstrated a preference for targeting critical infrastructure and public services, with notable attacks against educational institutions, healthcare facilities, and government entities primarily in the United States, though they have also significantly impacted organizations across Germany, the United Kingdom, Canada, and France. Their encryption methodology involves custom-built malware that systematically encrypts files while maintaining persistence on compromised networks. As of recent reporting from federal agencies including CISA and FBI advisories, Royal remains an active threat with ongoing campaigns targeting organizations across their preferred sectors, particularly focusing on entities with limited cybersecurity resources that may be more likely to pay ransom demands. The group has been linked to 211 public disclosures across our corpus. First observed on a leak site on November 4, 2022; most recent post July 19, 2023. The operation is currently inactive.

Timeline of this disclosure

  • April 3, 2023Corizon Healthcare listed by Royalon the group's public leak site

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

If your organisation is affected

A listing by Royal means Corizon Healthcare 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 Royal'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.