South Francilien Hospital Center

South Francilien Hospital Center (CHSF) is a public healthcare institution located in France. It provides a broad range of medical services to the population of the southern Île-de-France region. Core services include emergency care, medical imaging, admissions processing, and operating room facilities. The hospital also offers specialized care that may require patient transfers to other facilities for particular treatments. Routine operations rely on integrated information systems for imaging, patient admissions, and surgical scheduling. In addition to clinical functions, the hospital maintains telephone communication lines for patient and staff contact. As a publicly funded establishment, it operates under the French national health system. Its mission is to deliver accessible, high‑quality healthcare to the community it serves. The institution supports both inpatient and outpatient pathways across multiple medical disciplines. These services are delivered by a multidisciplinary workforce of physicians, nurses, technicians, and administrative staff.

The hospital’s distinguishing attributes stem from its status as an Établissement public de santé within the French public hospital sector. It functions as a reference point for acute care in its geographic catchment area, handling both urgent and scheduled interventions. During the ransomware incident on 21 August 2022, critical systems such as medical imaging, admissions software, and operating room technologies were rendered inoperable. Despite the cyberattack, telephone services remained functional, allowing limited communication with patients and external partners. The event prompted a national investigation and the involvement of French cybersecurity agencies, highlighting the hospital’s role in critical infrastructure. LockBit ransomware group was identified through a ransom note, linking the incident to a known ransomware‑as‑a‑service operation. The attack underscored the importance of resilient information technology for maintaining clinical workflows. CHSF’s experience has contributed to broader discussions on cybersecurity preparedness for healthcare providers in France. The institution continues to prioritize the restoration and hardening of its digital assets to safeguard patient care. These factors collectively define CHSF’s position as a key regional provider that balances clinical service delivery with ongoing efforts to secure its operational technology.