Cyberattack on French Blood Service Refrigeration Systems Alters Plasma Storage Temperatures
Three sites of the Établissement français du sang (EFS) suffered a cyber intrusion targeting refrigeration equipment supplied by an external vendor. Attackers remotely modified temperature setpoints and defrost cycles in cold storage chambers holding plasma for transfusions and derived medicines. Rapid detection by EFS monitoring systems allowed technical teams to isolate affected units and transfer products, preventing any loss or quality degradation. The incident follows similar attacks in October 2026 on French supermarket chains including Intermarché, Netto, Leclerc and Super U, where Danfoss controllers were manipulated to extreme defrost values up to 99 °C. Comparable anomalies were also reported at U.S. military retail facilities linked to the Pentagon in August 2026. The pattern highlights risks when industrial control systems for critical cold-chain infrastructure are exposed through third-party vendors.
ZATAZNov 5, 2026Translated from French