Three sites in France that handle blood and plasma bags were briefly impacted this week by widespread attacks on vulnerable internet-connected refrigerators. On Wednesday, the Établissement Français du Sang (EFS) confirmed that cold rooms storing blood were “raised to very high temperatures” on November 2. The blood samples, thankfully, weren’t altered or damaged, the EFS said, because the organization’s alarm facilities and staff quickly detected the changes and implemented fail-safe measures.