Twitter sold data to a Cambridge Analytica researcher too
Dr. Aleksandr Kogan, the developer of the software used by Cambridge Analytica in controversy surrounding the collection of data of over 80 million users of the social network Facebook, also had a hand in purchasing large amounts of Twitter user data.
Kogan's company, Global Science Research (GSR), had purchased to the statistics of a sampling of random tweets from December 2014 to April 2015. Twitter later confirmed this to Telegraph.
Twitter claimed in a statement to Bloomberg that GSR and Cambridge Analytica seemingly did not have access to the private data of Twitter users outside of what was purchased according to an internal review by Twitter itself.