On the night of 1–2 November 2026, supermarket refrigeration and freezer systems in at least seven European countries (Belgium, Estonia, Ireland, Finland, Luxembourg, the Netherlands and Sweden) experienced coordinated temperature spikes, with multiple retailers and technical providers attributing the incident to cyber-attacks against remotely managed cooling controllers. The attacks echoed a major October 2026 operation in France in which hackers remotely overrode supermarket cooling units, pushing temperatures from deep-freeze levels to as high as 50C, causing fires and food losses estimated in the tens of millions of euros. In the latest wave, affected shops reported fridges and freezers heating up (often to 50C), leading to spoiled stock, empty refrigerated shelves, and precautionary removal of chilled and frozen products. National and EU authorities, as well as cybersecurity firms, highlighted the sabotage-like nature of the intrusions, lack of extortion demands, and the broader context of concern over state-linked hybrid operations targeting exposed operational-technology devices across Europe.

On the night of 1–2 November 2026, supermarket refrigeration and freezer systems in at least seven European countries (Belgium, Estonia, Ireland, Finland, Luxembourg, the Netherlands and Sweden) experienced coordinated temperature spikes, with multiple retailers and technical providers attributing the incident to cyber-attacks against remotely managed cooling controllers. The attacks echoed a major October 2026 operation in France in which hackers remotely overrode supermarket cooling units, pushing temperatures from deep-freeze levels to as high as 50C, causing fires and food losses estimated in the tens of millions of euros. In the latest wave, affected shops reported fridges and freezers heating up (often to 50C), leading to spoiled stock, empty refrigerated shelves, and precautionary removal of chilled and frozen products. National and EU authorities, as well as cybersecurity firms, highlighted the sabotage-like nature of the intrusions, lack of extortion demands, and the broader context of concern over state-linked hybrid operations targeting exposed operational-technology devices across Europe.