LONDON (AP) — Mysterious cyberattacks on European supermarket fridges have sent officials around the continent scrambling to figure out the cold, hard facts. Supermarkets in a number of European countries reported this week that their fridges and freezers warmed up after they were remotely taken over, resulting in tons of spoiled food at a total cost of millions of dollars (euros). One Swedish supermarket said its fridges and freezers had been hacked and set to 50 degrees Celsius (122 It's a...