https://finance.yahoo.com/news/academic-behind-facebook-breach-says-075404608.html

Facebook has said the data was harvested by Aleksandr Kogan, a psychology academic, who created an app on the platform that was downloaded by 270,000 people. It says he then violated its policies by passing the data to Cambridge Analytica.

"The events of the past week have been a total shell shock," Kogan told the BBC. "My view is that I'm being basically used as a scapegoat by both Facebook and Cambridge Analytica when... we thought we were doing something that was really normal.