Political consultancy, under fire over use of millions of Facebook users’ data, has begun insolvency proceedings Cambridge Analytica, the data firm at the centre of this year’s Facebook privacy row, is closing and starting insolvency proceedings. The company has been plagued by scandal since the Observer reported that the personal data of about 50 million Americans and at least a million Britons had been harvested from Facebook and improperly shared with Cambridge Analytica. Cambridge Anal...