Hackers Push Europe's Supermarket Fridges to 70°C as Food Spoils Across Stores

 

A cyberattack on supermarket refrigeration has turned a routine piece of shop equipment into a food-safety emergency across Europe. Hackers pushed fridge and freezer temperatures to between 50°C and 70°C in affected stores, spoiling food on shelves from Sweden to Belgium. Sweden has opened investigations as retailers pull affected goods from their shelves and work out how far the intrusion reached.

What happened

Refrigeration is one of the quiet systems that modern food retail depends on. Fridges and freezers in supermarkets are increasingly connected to central monitoring systems, which let managers check temperatures remotely and receive alerts when something goes wrong. That connectivity is efficient, but it also creates an entry point: if attackers can reach the control system, they can change the settings that keep food cold.

In this case, the reported effect was dramatic. Temperatures that should sit a few degrees above or below freezing were driven up to levels at which chilled and frozen food spoils quickly. Perishable goods — dairy, meat, fish and ready meals — cannot safely be sold once they have spent time at those temperatures, so the damage is not just a technical fault but a direct loss of stock and a risk to anyone who might have bought affected items before the problem was spotted.

Why retailers are taking it seriously

Food retailers operate on tight margins and strict safety rules, so a refrigeration failure is expensive even before any question of a cyberattack. Spoiled stock must be thrown away, shelves must be restocked, and customers must be reassured that nothing unsafe remains on sale. When the cause is a deliberate intrusion rather than a broken compressor, the response widens: IT teams must check whether other systems were touched, whether customer or payment data was involved, and how the attackers gained access in the first place.

Sweden's decision to open investigations underlines that point: a coordinated temperature change across stores in more than one country is a matter for law enforcement and cyber-security authorities. Investigators will want to establish who was behind the attack, whether it was aimed at disruption, extortion or something else, and whether other retailers or sectors could be targeted next.

A warning for connected infrastructure

The incident is also a reminder of how much everyday infrastructure now runs on connected systems. Heating, cooling, lighting and stock control in large stores are often managed through the same kinds of remote platforms that run offices and warehouses. That brings real benefits — energy savings, faster fault detection, central control — but it also means that a security weakness in an unglamorous system, like fridge monitoring, can have physical consequences in the real world.

For shoppers, the practical message is simple: if a retailer says goods have been pulled from shelves, food kept at the wrong temperature should not be rescued from a discount bin. For retailers everywhere, including in Pakistan, where cold chains for dairy, meat and medicines are expanding fast, the lesson is to treat refrigeration controls as critical infrastructure — segmented from other networks, protected with strong access controls, and monitored for changes that no legitimate user would make.

As investigations continue, more detail will emerge about how the attackers got in and how many stores were affected. What is already clear is that the attack worked precisely because it targeted something most people never think about — until the food in the fridge is no longer safe to eat.

Follow Rise Pakistan on Facebook for daily updates: https://www.facebook.com/profile.php?id=100077289971426