What A Hacked Refrigerator Can Teach Us About Cybersecurity
The supermarket fridge is probably the dullest machine in any store. It hums, it stays cold, and nobody gives it a thought until the milk goes sour. On the night of 11 October 2026, it became the most talked-about machine in France.
A login page in the wrong place
Overnight, someone accessed the refrigeration controllers of hundreds of French supermarkets and switched fridges and freezers into defrost mode. By morning, units in Intermarché, Carrefour, Coopérative U, Monoprix and other stores had climbed to around 50°C. Later estimates put the toll at 250 to 350 stores. Stock went straight into skips, and in some shops the heat damaged equipment or started fires, with sprinklers adding water damage on top.
Three weeks later, on 2 November, a second wave hit more than 115 stores in Belgium, Luxembourg, the Netherlands, Sweden, Ireland and Estonia.
The method was almost embarrassingly simple. The targets...
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