Sinobi Strikes Johnson Regional Medical Center in Ransomware Attack

Ransomware

Summary

On October 2, 2025, the ransomware group Sinobi publicly claimed responsibility for an attack targeting
Johnson Regional Medical Center, a U.S.-based healthcare provider.
According to the threat actor’s post, they intend to release sensitive data unless negotiations are initiated.


Incident Report

FieldDetails
TargetJohnson Regional Medical Center
Domain
CountryUSA
Attacking GroupSinobi
Date ReportedOctober 2, 2025
Threat Actor Statement“The full leak will be published soon, unless a company representative contacts us via the channels provided.”

Johnson Regional Medical Center has been a healthcare provider in Johnson, Logan, Franklin, and Pope counties since 1922, evolving from humble beginnings into a licensed facility with 90 beds. The center offers a wide range of medical services including outpatient therapy, orthopedics, emergency care, and various specialty clinics. Their commitment to quality care aims to serve local patients and visitors effectively. They also engage in community events and support initiatives such as blood drives and health education classes.

The Sinobi ransomware group is notorious for targeting healthcare facilities, exploiting vulnerabilities to extract sensitive patient data and demand ransoms. Organizations like Johnson Regional Medical Center must proactively protect their data and systems from such threats.

Proactive response to ransomware threats involves vigilant monitoring of dark web activities. Utilizing tools like dark web monitoring can alert organizations to potential breaches early. It’s crucial for businesses to use resources like the email breach checker available at MSPDarkIntel Domain Breach Scan to keep an eye on their companies’ exposure and take timely action.

Recommendations

  • Monitor your domains and email addresses for exposure using reputable threat intelligence tools.
  • Conduct a full compromise assessment and incident response drill internally.
  • Verify backups and ensure they are offline and ransomware-resistant.
  • Educate staff on phishing, social engineering, and lateral movement techniques used by groups like Qilin.
  • Engage with cyber forensics and legal counsel before initiating contact with threat actors.

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Disclaimer

The MSPDarkIntel team does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information.
All breach data reported here is sourced from publicly available threat intelligence feeds for awareness and early-warning purposes only.
Our goal is to inform organizations of emerging threats so they can take timely defensive action.

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