The Cardiovascular Medical Group of Southern California (CVMG) was targeted by the Sinobi threat actor in a ransomware attack, potentially compromising their sensitive patient data and disrupting essential cardiovascular services. This incident highlights the ongoing cybersecurity vulnerabilities faced by healthcare providers in the United States. #UnitedStates
Incident Details
- Victim: Cardiovascular Medical Group of Southern California (CVMG)
- Sector: Healthcare
- Country: US
- Actor: sinobi
- Source: http://sinobi6ftrg27d6g4sjdt65malds6cfptlnjyw52rskakqjda6uvb7yd.onion/leaks/6963ff4c6387a4c9a21c4b69
- Discovered: 2026-01-11 19:52:07.661523
- Published: 2026-01-11 19:51:40.359000
Information
- The Cardiovascular Medical Group of Southern California provides a comprehensive range of cardiovascular services, including diagnostic testing, disease management, and advanced treatments.
- They serve patients of all ages with expert care from board-certified physicians specializing in cardiology and internal medicine.
- The clinic emphasizes prevention of heart disease and uses the latest medical technologies to support patient health.
- Accessible virtual services are available, such as electronic appointment requests and test results.
- Their commitment to personalized care is demonstrated through strong physician-patient relationships and partnerships with renowned medical institutions.

Disclaimer: This post is based on public claims made by the ransomware group "sinobi". I cannot confirm the accuracy of the information. However, I would be happy to share any official statement from the affected organization to provide clarification.