Twitter in data-protection probe after ‘400 million’ user details up for sale Politicians and celebrities are said to be affected but the scale of the data breach is unverified. Source
Royal Mail hit by post-Christmas online outage Problems emerge on the website and app on the first day of regular post following the festive period. Source
Apple and Tesla: Tech shares tumble amid supply issues Both companies have suffered major losses over concerns about supply chain hiccups in China. Source