In six European Union countries, hackers defrosted supermarket refrigerators Supermarket chains in Sweden, Finland, Ireland, Belgium, Luxembourg and Estonia were attacked by hackers who disabled refrigerators and freezers in stores on Monday, local and international media reported. In some cases, such as the Ica and Loll stores in Sweden, the freezer temperatures were raised to 50-55 degrees. As a result, retailers could lose product worth millions of euros. The story is reminiscent of the attack that took place three weeks ago in France, where about 700 stores became "victims" of hackers. Although the geographic scope of the attack has now expanded, the scope of the attack appears to be smaller for now, judging by early reports. Swedish chain LOL said unknown hackers broke into refrigerators and freezers in seven of its 800 stores. At least four pieces of equipment in the IKEA network were damaged. In Belgium, the local unit of France's Carrefour reported problems in 15 stores out of 700, and the Netherlands' Sapar reported failures at five sites. The Dutch chain Ahold Delhaize (operating under the Albert Heine brand) confirmed on Sunday evening an "IT incident" in several Belgian stores. More details.