The quiz app developer at the center of the Cambridge Analytica scandal, Aleksandr Kogan — who harvested and sold/passed Facebook user data to third parties — has accused Facebook of ...

Facebook faces new accusation of data leak via quiz app Despite making some platform changes, Facebook failed to check basic security for a quiz app with access to millions of users’ personal ...

Facebook Inc. on Wednesday banned from its platform a quiz app that could have exposed the data of up to four million users, after the developers declined to be audited by the social-media giant.