Swedish chains behind two-thirds of grocery sales hit by freezer cyberattacks

European supermarkets were hit by cyberattacks that caused freezers to overheat up to 55°C, Coin Bureau posted on Monday.

The incidents hit stores in Sweden and Belgium, forcing retailers to throw away food.

In Sweden, the affected chains ICA and Coop together account for 67.3% of the country's grocery market, according to the post.