Far more than 87 million people may have had their Facebook data
harvested by Cambridge Analytica, according to evidence from
former employee Brittany Kaiser.
Speaking to the Commons digital, culture, media and sport select
committee, Kaiser said Cambridge Analytica had a suite of
personality quizzes designed to extract personal data from the
social network, of which Aleksandr Kogan’s This Is Your Digital
Life app was just one example.
In evidence to the committee, Kaiser wrote: “The Kogan/GSR
datasets and questionnaires were not the only Facebook-connected
questionnaires and datasets which Cambridge Analytica used. I am
aware in a general sense of a wide range of surveys which were
done by CA or its partners, usually with a Facebook login — for
example, the ‘sex compass’ quiz.”