Tons of chilled and frozen food was spoiled last month as fridges and freezers in hundreds of supermarkets heated up. France has accused Iran's Islamic Revolutionary Guard Corps of carrying out cyberattacks that disrupted refrigeration units at more than 350 supermarkets. Paris has summoned Iran's ambassador and. Fridges and freezers in hundreds of supermarkets across France were affected last month France has accused Iran's Islamic Revolutionary Guard Corps (IRGC) of being behind.