there will come a time when compromised smart fridges will cause mass casualties (food poisoning). it's beyond stupid to allow a smart fridge in your home.
whether because someone just wants chaos or a clever scheme to manipulate stock prices of food distributors.
a smart fridge knows when it's opened, which will let an attack algorithm to reliably determine the sleep schedule of the household. just a few hours night over night is enough to compromise your food leaving no trace.