Cambridge Analytica created own quizzes to harvest Facebook data

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Controversial data mining company collected information on at least 87 million Facebook users. LONDON -- Cambridge Analytica created its own Facebook quizzes and questionnaires to collect reams of data on users using the social networking giant, according to a former senior official at the data mining company. Brittany Kaiser, the former director of program development at Cambridge Analytica, told British lawmakers on Tuesday that the company, which is at the center of a broader Facebook data scandal, widely used such practices, including a "sex compass" quiz, to garner insight on people's online habits. These data-collection strategies made it highly likely that more people's Facebook data had been collected without their knowledge than previously thought, according to Kaiser. Cambridge Analytica is already accused of using a third-party app created by Aleksandr Kogan, a Cambridge University professor, to collect online information on up to 87 million Facebook users.