Major French supermarket chains Intermarché and Coopérative U were hit by a cyberattack that caused their refrigerators to defrost, the two retailers told AFP Monday. Some 150-200 Intermarché shops were targeted, along with almost 100 Coopérative U outlets, in the attack, they said. Paris prosecutors confirmed the attack, which reportedly also hit other major chains, and also indicated it had prompted outbreaks of fire. BFM TV said France’s largest supermarket chain E. Leclerc was also affected,...