Would Facebook and Cambridge Analytica be in Breach of GDPR?

The Cambridge Analytica (CA) and Facebook accusations over the U.S. 2016 presidential election campaign, and to a lesser extent between CA and the UK's Brexit VoteLeave campaign, are -- if proven true -- morally reprehensible. It is not immediately clear, however, whether they are legally reprehensible. The matter is currently under investigation on both sides of the Atlantic. On March 26, both Apple and IBM called for more regulatory oversight on the use of personal data. "I'm personally not a ...