Tesco, UK's largest supermarket chain, was targeted by hackers on Saturday, halting orders on its app and website through Sunday (Julia Kollewe/The Guardian)

Julia Kollewe / The Guardian:
Tesco, UK's largest supermarket chain, was targeted by hackers on Saturday, halting orders on its app and website through Sunday  —  Consumers unable to book or amend deliveries after ‘attempt made to interfere with systems’  —  Tesco has been hit by hackers, leaving thousands …