A spokesman for Colruyt Group, which operates Spar stores in Belgium, said five of its shops were targeted.
And at least one Ikea in Belgium was forced to remove some food products from its refrigeration units, with a spokesman warning that “additional locations may be affected”.
A spokesman for the British Retail Consortium (BRC) also confirmed that it had been liaising with domestic retailers about the incidents in Europe.
Graham Wynn, of the BRC, said: “Retailers invest heavily in their cyber security and are currently working with the National Cyber Security Centre to ensure their fridges and freezers are secure as possible against potential attacks.”
