A company specializing in online data analysis involved in US President Donald Trump's campaign and the pro-Brexit campaign exploited for electoral purposes Facebook data of tens of millions of US citizens in a member of Steve Bannon's team called "War psychological ".
A transparency activist, Christopher Wylie, revealed to The New York Times and Observer that Cambridge Analytica, owned by Robert Mercer speculative billionaire and headed by Steve Bannon, attended Donald Trump's election campaign using fraudulent Facebook profiles of millions of American voters to build a powerful software program to anticipate and influence electoral preferences. The same analytical company was involved in the campaign for the UK out of the European Union (Brexit). Steve Bannon became director of Donald Trump's campaign team in August 2017.
Cambridge Analytica used stolen data in 2014 from Facebook accounts to set US voter profiles and send personalized political ads
Christopher Wylie, who worked with Cambridge University professor for data, told Observer: "We have exploited the Facebook online socialization platform to get millions of voters' profiles. (...) This was the basis on which the company was built. "
Documents Observer and Facebook have revealed that by the end of 2015, Cambridge Analytica collects online data to an unprecedented level. Facebook had not warned users yet and only took limited measures to secure the data of more than 50 million people
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According to The New York Times, copies of Cambridge Analytica data are still online. The information was gathered through an application called "thisisyourdigitallife", created by Professor Aleksandr Kogan independently of his work at Cambridge University. Through its company, Global Science Research (GSR), in collaboration with Cambridge Analytica, hundreds of thousands of Facebook users have been paid to perform personality tests under the pretext of using data for academic studies. But the application also collects the data from the "friends" lists of those who accepted the tests, so the profiles of tens of millions of people were obtained, according to the Guardian newspaper.