Hackers Hit French Blood Banks in Refrigeration Attacks

French blood banks were hit by a cyberattack Monday in which intruders manipulated the cooling units that keep donated blood at safe temperatures, according to DW. The outlet reported the attackers’ apparent goal was to ruin blood plasma kept in cold storage by pushing refrigerator temperatures higher than the stored material can tolerate.

The incident is the newest development in a campaign that has crossed national borders and targeted refrigeration equipment specifically. Before Monday’s attack on blood storage, grocery chains in seven countries were forced to throw out food that spoiled when their cooling systems were compromised in earlier strikes tied to the same campaign, CNBC reported.

The French attacks also carry an echo in the United States. Two months ago, freezers at U.S. military commissaries failed in outages that remain unexplained, Stars and Stripes reported. The Pentagon told the outlet its investigation is ongoing but has declined to describe what caused the failures. Defense officials have not said whether the American commissary incidents are linked to the attacks now unfolding in Europe. Cybersecurity specialists interviewed by Stars and Stripes said adversaries increasingly view the systems that move and store food as worthwhile targets.

The context

The campaign against refrigeration systems began with commercial food storage before expanding to medical supplies. Supermarkets across seven countries absorbed the first wave, discarding inventory that warmed past safety thresholds after their cooling equipment was tampered with, according to CNBC. The French blood bank attack marks a shift from economic damage to interference with health infrastructure, since plasma and other blood products must stay within narrow temperature ranges to remain usable.

The U.S. military commissary outages predate the known European attacks by roughly two months. Stars and Stripes reported that the Pentagon has kept the results of its inquiry private and has not publicly attributed the freezer failures to any cause, leaving open the question of whether they were an early instance of the same activity or an unrelated malfunction. The material available does not identify who is behind the European attacks or how the intruders gained access to the refrigeration controls.

Why it matters

Blood products are a finite medical resource, and an attack that warms storage units can destroy supplies hospitals depend on for transfusions and emergency care. The campaign also demonstrates that networked temperature-control systems — in grocery stores, military facilities and now medical cold storage — can be reached and manipulated remotely, with physical consequences that cannot be reversed once a product spoils. Experts cited by Stars and Stripes say food supply chains have become attractive targets for adversaries, and the extension into blood banking suggests the same vulnerability applies to health systems. A possible U.S. connection remains an open question given the unresolved commissary outages.

What’s next

The Pentagon’s investigation into the commissary freezer failures continues, with no stated timeline for findings or any public attribution, per Stars and Stripes. Key unknowns include who is conducting the European attacks, how much blood plasma was actually lost in France, and whether the U.S. outages are connected. Watch for statements from French health authorities on the extent of the damage and from the Pentagon on its inquiry’s results.