Les Laboratoires Français Cerballiance

Cerballiance, also known as Les Laboratoires Français Cerballiance, is a French organization that operates medical laboratory facilities. It provides diagnostic biology services to patients and healthcare professionals. The organization conducts a range of analyses that support clinical decision‑making. Its activities include sample collection, testing, and result reporting for various medical specialties. As a laboratory operator, it handles sensitive personal and health information in the course of its service delivery. Its headquarters are located in France.

Cerballiance distinguishes itself through its specialization in medical biology and its role as a provider of essential diagnostic information within the French healthcare system. The organization is subject to national health regulations and must comply with data protection standards governing patient information. In February 2025 it experienced a cyberattack that compromised administrative patient data. The breach prompted a response that included notification to ANSSI and CNIL, containment of the incident, and direct communication with affected individuals. This incident highlighted the organization’s responsibility for safeguarding identifiers such as names, birthdates, contact details, and social security numbers. The response actions demonstrate its adherence to incident‑reporting obligations and its effort to maintain transparency with patients and regulators.