Cyberattack Hits French Blood Bank Cold Stores After Wave of Supermarket Fridge Hacks

"The situation is now under control and is being closely monitored," the ministry said in a statement reported by Reuters. It said blood supplies stayed safe because of the sites' monitoring and alarm systems and precautions taken immediately after the incident.

According to EFS, as reported by AFP via Gulf News, the incident targeted a refrigeration service provider and affected monitoring and control systems at three sites. The cold stores held blood samples and bags of plasma for transfusions and for making medicines. EFS said there had been "no health impact" and no loss of blood products. Reuters described several regional facilities as affected without giving a number.

French satirical weekly Le Canard Enchaîné reported that the cold stores were reprogrammed to a far higher temperature than the minus 30 degrees Celsius they are meant to hold. Authorities have not confirmed that account.

The ministry said investigators are working to establish how the attack was carried out, which equipment may have been affected, and when and how the systems can safely return to service. It has not said who might be responsible.

Part of a Pattern

The blood bank incident came on the same day that hackers tampered with refrigeration systems at supermarkets in eight European countries, forcing stores to throw away large amounts of food. That attack resembled hacks that hit dozens of French supermarkets three weeks earlier, Reuters reported. Institutions and companies across Europe are now on alert, AFP said.

The incidents all target the operational technology that controls physical equipment, rather than the office IT systems that hold data. Commercial refrigeration is often monitored remotely by outside service providers. That convenience creates a route in for attackers, and a single compromised supplier can reach many sites at once.

Why It Matters

For operators of hospitals, laboratories, pharmaceutical supply chains and food retailers, the attacks show that connected building systems can be as critical as core IT. Cold chain failures can destroy stock worth millions and, in healthcare, put patients at risk. The French case suggests that alarms and manual checks remain an important safeguard when control systems are compromised.

The incident is also likely to bring closer attention to third-party maintenance providers with remote access to critical equipment. European regulators have pushed for this kind of supply chain scrutiny under recent cybersecurity rules, and these attacks show why.