During the night of November 1–2, an alleged cyberattack targeted Coolworld, a refrigeration service provider for the French Blood Establishment (EFS), disrupting temperature-control systems used to store blood products in France. According to information reported by French weekly Le Canard enchaîné and summarized by OSINT account @InsiderGeo, hackers allegedly manipulated refrigeration settings so that freezers normally maintained at approximately –30°C were reprogrammed to reach up to 110°C. The incident reportedly affected facilities in the Bourgogne-Franche-Comté region and included frozen plasma intended for transfusions to patients, not just donor monitoring samples. Frozen plasma is described as a critical medical product used in hospitals, including for severe hemorrhage and certain coagulation disorders, requiring strict cold-chain conditions. The abnormal temperature rise was reportedly detected overnight by an on-call technician, whose rapid response allowed the situation to be addressed before any operational disruption occurred. The French Ministry of Health stated that the incident had no operational consequences and that no compromised transfusions or patient harm have been confirmed, but key details such as the number of affected facilities, duration and exact temperatures reached, and the full scope of potential impact on stored plasma remain undisclosed.

During the night of November 1–2, an alleged cyberattack targeted Coolworld, a refrigeration service provider for the French Blood Establishment (EFS), disrupting temperature-control systems used to store blood products in France. According to information reported by French weekly Le Canard enchaîné and summarized by OSINT account @InsiderGeo, hackers allegedly manipulated refrigeration settings so that freezers normally maintained at approximately –30°C were reprogrammed to reach up to 110°C. The incident reportedly affected facilities in the Bourgogne-Franche-Comté region and included frozen plasma intended for transfusions to patients, not just donor monitoring samples. Frozen plasma is described as a critical medical product used in hospitals, including for severe hemorrhage and certain coagulation disorders, requiring strict cold-chain conditions. The abnormal temperature rise was reportedly detected overnight by an on-call technician, whose rapid response allowed the situation to be addressed before any operational disruption occurred. The French Ministry of Health stated that the incident had no operational consequences and that no compromised transfusions or patient harm have been confirmed, but key details such as the number of affected facilities, duration and exact temperatures reached, and the full scope of potential impact on stored plasma remain undisclosed.