France's national blood service reported a cyberattack that compromised refrigeration systems at three of its facilities. The attack targeted a provider of refrigeration equipment, which resulted in altered temperature and defrost settings. This disruption posed a serious risk to the integrity of stored blood products, potentially impacting their viability for medical use. Authorities are now investigating the incident to assess the full extent of the damage and to ensure the safety of the blood supply. This incident underscores the vulnerabilities in critical infrastructure and the potential consequences of cyberattacks on public health services.