Cyberattacks disrupt supermarket refrigeration across Europe

A new wave of fridge cyberattacks has affected supermarket refrigeration systems across several European countries, with Belgian and Luxembourg stores joining incidents already seen in Sweden and Estonia. The owners and operators affected, including Belgium’s Delhaize and Colruyt, reported unusual temperature rises in refrigeration units overnight on Monday 2 November 2026, according to sources cited by Security Affairs.

In Sweden, ICA and Coop reported refrigeration problems at multiple stores after temperatures spiked, with ICA Kvantum in Sjöbo saying a cyberattack caused problems and a central Stockholm store also affected, Reuters reported. Sweden’s national cybersecurity centre confirmed ongoing incidents in several stores. An Estonian chain was also affected, with Kitman Coldtech telling public broadcaster ERR that the refrigeration systems in one store were set to 50°C.

The article notes that in France last month a similar campaign targeted Danfoss-controlled cooling equipment, leading to heat, fires and food losses. It aggregates statements from Belga, Le Soir and Reuters, describing that in Belgium hackers allegedly switched evaporators to defrost mode, raising temperatures and causing product losses. In Sweden, officials warned of exposed operational technology devices and urged updates or patches.

The report also cites social media posts and local press, including the Sweden Herald and TT, about the scope and timing of the incidents, and notes that the Swedish authorities have not attributed the attacks to a specific group at this time. The piece attributes most specifics to Delhaize spokespeople, Sabcobel executives and various national outlets quoted in the piece.