Hundreds of French supermarkets have been hit by a cyber attack that caused their fridges and freezers to heat up, spoiling fresh and frozen food estimated to be worth millions of euros.

French investigators on Tuesday were hunting the hackers ​who seized control of cooling units at hundreds of supermarkets in a cyberattack that underlined the vulnerabilities of connected systems, ‌wi...

French TV channel BFM reported that the attackers appeared to have remotely triggered a forced defrosting option in the refrigeration systems.