STOCKHOLM: Supermarkets in Sweden, Belgium, Luxembourg, Ireland and Estonia were hit Monday by problems with freezers and fridges that apparently were caused by cyberattacks, forcing some to. One store in Sweden says temperatures for its freezers were set to 50 C (122F). Supermarkets across six European countries have been hit by mysterious fridge and freezer disruptions. In Belgium, Luxembourg, Sweden, Ireland, the Netherlands, and Estonia, store cooling systems.