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An estimated 700 supermarkets across France experienced a mass hack of their refrigeration systems earlier this week, leading to widespread food spoilage and fires in some locations.
French authorities stated that the incident resulted from compromised Internet-connected controllers used by technicians to remotely administer store-wide cooling fleets.
The attackers activated defrosters for extended periods, causing internal temperatures to rise as high as 50° Celsius (122° Fahrenheit).
By the time the breach was discovered, perishable goods had spoiled, and electrical systems in certain stores caught fire.
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