France has officially accused Iran's Islamic Revolutionary Guard Corps (IRGC) of orchestrating a widespread cyber-attack last month that targeted and disabled refrigeration units in hundreds of French supermarkets. The sophisticated operation, which saw temperatures in fridges and freezers rise significantly, led to the spoilage of fresh and frozen goods valued at millions of euros.

French Foreign Minister Jean-Noël Barrot described the incident as unprecedented in its scale and aggression, emphasizing that those responsible would face European-level sanctions. The attack, which occurred on October 11, affected the software controlling refrigeration units, causing temperatures to soar in some cases to 50C (120F) overnight. This marks what Barrot called the first large-scale cyber-attack aimed at sabotage on French national territory, constituting a major assault on national interests and public security.

Several major French retailers, including Coopérative U, Intermarché, its Netto brand, Carrefour, Monoprix, and E.Leclerc, reported significant disruptions. The compromised software was supplied by Danish engineering firm Danfoss, which allows for remote management of cooling systems. Following the attacks in France, a second wave impacted over 100 stores across other European countries, including Belgium and Luxembourg, with smaller numbers affected in Sweden, Ireland, the Netherlands, Estonia, and Finland. It remains unclear if these subsequent attacks are directly linked.

In response to the incident, France summoned the Iranian ambassador to Paris to lodge a formal protest. Barrot stated that France would "take any other necessary and proportionate measures to respond to the incident and deter anyone who might seek to repeat it." The French government is committed to holding those responsible accountable and preventing future attacks.

In a separate but related development, the Paris prosecutor's office has opened an investigation into the head of an offensive cyber unit allegedly affiliated with Iran's IRGC, identified as Shahid Kaveh, along with two of his deputies. This unit is believed to be directly employed by the Iranian regime, underscoring the seriousness with which French authorities are treating the alleged state-sponsored cyber aggression.

Experts have been analyzing the potential perpetrators behind these sophisticated attacks. While several hacking groups have been considered, Iran has been identified as a potential suspect. The incident also follows reports of mysterious fridge malfunctions on a small number of U.S. military bases in August, which are also being investigated as deliberate cyber-attacks.

The targeting of critical infrastructure like food supply chains represents a significant escalation in cyber warfare. The potential for widespread disruption and economic damage highlights the growing threat posed by state-sponsored hacking groups and the need for robust international cooperation in cybersecurity.

Authorities are continuing their investigations into the full extent of the damage, the specific methods used by the hackers, and the potential involvement of other state actors. The imposition of sanctions and diplomatic measures will depend on the findings of these ongoing inquiries.