SAINT-BRIEUC, France — The French Blood Establishment (EFS) confirmed Wednesday that its cold storage infrastructure was targeted in a sweeping wave of cybersecurity attacks that have crippled refrigeration systems across Europe. While the EFS was not the primary target of the breach, the incident compromised external providers responsible for maintaining the climate-controlled environments essential for storing vital blood products.
According to the EFS, hackers remotely accessed the control systems of cold storage units at three of its preparation and distribution sites. In an alarming escalation of the attack, the perpetrators deliberately altered system settings, forcing temperature and defrost thresholds to dangerous, excessively high levels. These compromised units were tasked with storing blood products destined for hospitals, as well as sensitive samples intended for biobanks and frozen plasma utilized in transfusions and the manufacturing of medicinal products.
The attack on the blood supply is part of a larger, ongoing digital campaign that has hit hundreds of supermarkets across France, Belgium, Sweden, and Finland over the past several weeks. In those retail incidents, hackers successfully forced refrigeration units to heat up to temperatures as high as 122°F, resulting in millions of euros in spoiled food and, in some instances, sparking electrical fires.
“The temperature and defrost thresholds were set to excessively high levels,” the EFS stated in a translated release. “These cold storage units—located at EFS preparation and distribution sites—are used to store blood products prior to their delivery to healthcare facilities, as well as samples intended for EFS biobanks.”
Despite the sophisticated nature of the breach, the EFS reported that its surveillance and alarm systems were triggered almost immediately. The rapid response prevented a public health catastrophe; affected equipment was either brought back under manual control or taken offline before any spoilage occurred. EFS officials confirmed that no blood products or samples were lost, as existing inventory was quickly evacuated and transferred to secure, unaffected facilities.
The French Ministry of Health has stepped in to coordinate the response alongside the French National Cybersecurity Agency (ANSSI). While the ministry confirmed the situation is now under control, they emphasized that heightened monitoring protocols remain in effect across all national blood storage sites.
“The safety of our blood supplies was preserved thanks to the resilience of our monitoring and alarm systems, alongside the immediate precautionary measures taken by our staff,” the ministry said in a statement.
Authorities are now treating the incident as a critical infrastructure threat, as the investigation continues into the group responsible for the cross-border hacking spree. For now, the EFS maintains that the national blood supply remains stable and patient care will not be interrupted by the security breach.
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