Connected refrigeration networks at supermarkets across France were knocked offline by a coordinated intrusion into their digital infrastructure, leaving retailers to dispose of perishable stock while authorities opened a nationwide inquiry into the breach. Investigators are also examining whether enterprises operating elsewhere across Europe may have been affected.
A cyberattack affecting hundreds of supermarkets across France disrupted the temperature regulation systems in refrigeration units, which climbed to 50°C (122°F), triggering fires and rendering food supplies unusable. Paris prosecutors indicated that a coordinated digital assault had knocked out networked refrigeration systems at several food retail outlets across France, with the disruption leaving perishable goods spoiled and triggering a number of fires.
A directive from Prime Minister Sébastien Lecornu set the National Cybersecurity Agency (ANSSI) in motion to examine what had taken place. Cross-border coordination between officials and their European partners is under way, with investigators working to establish whether the incident has extended beyond France and whether other French businesses face exposure.
According to Felix Aime, a senior cyber threat intelligence analyst at Sekoia Threat Detection and Research, the disruption extended to five additional countries: Spain, Portugal, Poland, Germany, and Belgium. Professionals working in cybersecurity have flagged that a wave of intrusions tied to the latest incidents may have touched organisations operating across those same countries.
A handful of grocery chains have flagged operational disruptions tied to the incident. According to one retailer, roughly 80 of its store locations were caught up in the disruption. About 25 of Monoprix's roughly 490 French outlets were affected, the retailer indicated.
Refrigeration units at around 150 Intermarché stores were thrown into disarray overnight, the parent group Les Mousquetaires confirmed, after internal temperatures within the affected equipment reached 50°C and remained at that level for a period of six hours. Cooperative U's chief executive, Dominique Schelcher, indicated that the supermarket group had been among those affected. The group stated that any implicated stock had been removed from circulation to address concerns about consumer safety.
Intermarché chief executive Thierry Cotillard told a broadcast outlet that the disruption — which he described as without precedent — carried the potential to wipe out tens of millions of euros in revenue across the country within a single day. Neither E.Leclerc nor Auchan had provided a reply to queries sent by the time of publication.
Perishable stock held in refrigeration and freezer units had to be pulled from shelves and discarded after the incident rendered it unfit for sale. Portions of each location had to be cordoned off as staff worked to bring operations back to normal. At the Intermarché branch near the centre of Paris, staff moved trolleys loaded with defrosted frozen stock toward a large waste container, while melted ice cream ran from burst packaging across the footpath outside.
A request for complete disclosure about the incident was directed at refrigeration equipment supplier Danfoss by the French retail body Fédération du Commerce et de la Distribution, known as FCD. Retailers were already bringing a number of outlets back online, the association noted, with the broader effort focused on restoring full operations and safeguarding shoppers throughout the disruption. No comprehensive accounting of losses across the sector has yet been carried out.
Building end-to-end supply chain resilience was the takeaway that Christel Delberghe, director general of EuroCommerce, put forward in a published statement from the retail association following the episode.
In many grocery stores, a single centralised panel governs the cooling and freezing units spread throughout the building, keeping temperatures consistent across every aisle. Technicians at servicing firms can log in from off-site locations to check on and adjust store equipment without needing to be on the premises.
Devices involved were found to be operating on firmware that had not been brought up to date, despite notices issued over an extended period urging users to transition away from older hardware and keep active systems running on current software versions. Patterns documented at roughly a dozen US military commissaries toward the end of August bear a notable resemblance to what unfolded in France, with refrigeration failures tied to those events leaving stored food supplies unable to be maintained.
