France, Nov. 11 -- The attacks on French supermarkets took place overnight on 11 October and affected refrigeration systems at roughly 700 sites across the country.

Hackers allegedly altered the fridges' defrost settings, causing temperatures to rise, food to spoil and at least 15 fires to break out.

Paris prosecutor Laure Beccuau said investigators have opened a formal inquiry into Shahid Kaveh, a group of hackers France's Foreign Ministry says is linked to Iran's Islamic Revolutionary Guard Corps (IRGC).

The investigation targets its alleged leader and two deputies, and the prosecutor's office has requested international arrest warrants for all three men: Hamid Reza Lashgarian, Mahdi Lashgarian and Reza Salarvand.

Between Tehran's a...