In brief
French authorities said a cyberattack targeted the blood bank’s refrigeration units, temporarily raising temperatures but detecting the issue fast enough to prevent spoilage. The National Blood Service (EFS) reported no harm to blood samples, while Credit Mutuel Arkea confirmed fraudulent transactions linked to a separate breach yet assured customers that funds were secure. The incident follows a trend of European attacks on refrigeration in healthcare and retail settings.
A cyberattack targeted France’s national blood bank’s cooling system this week, causing refrigeration units to spike to high operating temperatures according to French blood bank authorities (EFS).
The attack, which manipulated the refrigeration units remotely, was detected quickly, and EFS said it took measures to ensure that blood products and bio‑samples were not affected by the temperature rise. Blood products are normally kept in cooled units before delivery to healthcare facilities, and the bank confirmed that none were compromised.
Elsewhere in France, banking group Credit Mutuel Arkea reported fraudulent transactions linked to a cyberattack, though it said customers’ funds remained safe. The group temporarily suspended certain transactions as a precaution when it detected the breach. Credit Mutuel stated that the incident has now stopped and that it has taken steps to protect its accounts.
Both incidents have followed similar attacks that recently targeted fridges and freezers in supermarkets across some European countries.
According to Xinhua, the cyberattacks were revealed on November 5, 2026, and the French blood bank authorities announced that the temperature change had been detected quickly and that the blood products stayed unharmed. Credit Mutuel Arkea added that its fraud‑related incidents are contained and that they are working to prevent future occurrences.



