Supermarket freezers across Europe hit by fresh ‘Cold War’ cyberattack — temperatures raised to 50C forcing grocers to throw away food

The current targets are in Ireland, Sweden, Belgium, Luxembourg and Estonia
The US military is investigating similar issues affecting six US bases
Over 400 French supermarkets were attacked in October 2026

In October 2026 hundreds of French supermarkets lost food worth millions of euros after a cyberattack turned their freezers up to 120F (50C) — and it looks like it’s happening again, this time in other European countries.

This time the targeted supermarkets include Supervalu, which is one of Ireland’s biggest supermarket chains, as well as the Swedish retailers Axfood and ICO and big-name supermarkets in Belgium, Luxembourg and Estonia.

While the targets are different the method appears to be the same, with remote access turning the freezers into heaters and spoiling their contents.

What’s happening to the supermarket freezers

This most recent attack follows in the footsteps of the French hack and the more recent Pentagon investigation into refrigeration issues in US military bases.

It could well be exploiting a very simple vulnerability, which is that remote refrigeration management systems have weak authentication and “dangerous” software flaws. Certainly in the case of the French supermarkets the BBC reported that the affected units were “older models whose security software could not be updated to ward off a risk” that the manufacturer had identified.

The French hack affected over 400 stores, and while the numbers aren’t in yet the new hack is likely to reach three figures too.

As we noted in our report on the Pentagon investigation, the “Internet of Things” makes it easier for companies to manage large groups of devices automatically and remotely, but it also opens up a new way for hackers to cause trouble — and if the software isn’t secure enough or updated when new threats emerge, it effectively puts up a welcome sign for cybercriminals.

The European Food Commissioner Christophe Hansen posted on X that “food security requires more attention at all levels. Because the weaponisation of food has become a reality.” He’s not wrong: whether they’re being exploited by cybercriminals looking for an easy payday, tech troublemakers or nation states waging hybrid wars, it’s clear that the Internet of Things needs to take security much more seriously.

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