www.tf1info.fr Cyberattack Alters Blood Storage Temperatures in France
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- •A cyberattack reprogrammed blood storage temperatures from -30°C to 110°C.
- •The attack targeted a contractor, not EFS directly, affecting multiple storage sites.
- •No health impact was reported due to quick response and monitoring systems.
A cyberattack on a refrigeration contractor for the Établissement français du sang (EFS) occurred on November 4, 2026, causing temperatures in blood storage chambers to rise from -30°C to 110°C. The attack targeted systems responsible for monitoring and controlling these chambers, which store blood plasma for transfusions and pharmaceutical production. EFS confirmed that the attack did not directly target their systems but affected installations at several sites. Fortunately, no health impact was identified due to rapid detection and response measures. The incident highlights vulnerabilities in healthcare infrastructure.
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