US warns over risk of hiring North Korea IT workers The remote workers allegedly aim to help fund Pyongyang's advanced weapons programmes. Source
Will swapping out electric car batteries catch on? One Chinese carmaker has plans for thousands of stations in Europe where you can switch batteries. Source
Twitter boss hits back on Musk doubts over fake accounts Chief executive Parag Agrawal says the firm is confident that less than 5% of users are spam accounts. Source