Those wondering why Facebook suddenly announced late Friday night that it has banned the Trump-affiliated data firm Cambridge Analytica received a decisive answer Saturday morning, when the New York Times and the London Observer published detailed reports on how the Robert Mercer-funded company exploited Facebook to harvest the personal information of around 50 million Americans without permission—the social media giant’s “largest-ever data breach.”
“Facebook clearly can’t handle the monster it created, nor does it seem particularly interested in trying.”
—Ashley Feinberg, Huffington Post
According to the Observer—which cites company documents and former employees—Cambridge Analytica “used personal information taken without authorization in early 2014 to build a system that could profile individual U.S. voters, in order to target them with personalized political advertisements.”
These targeting techniques would later form the foundation of Cambridge Analytica’s “work on President Trump’s campaign in 2016,” the TImes notes.
Documents viewed by the Times and the Observer paint a damning picture of Facebook’s failure to act when it learned in late 2015 that the personal data of tens of millions of users had been harvested on an “unprecedented scale.”
In a statement Friday night, Facebook confirmed that it uncovered Cambridge Analytica’s “violation” in 2015, but the Observer notes that “at the time it failed to alert users and took only limited steps to recover and secure the private information of more than 50 million individuals.”
The Observer summarizes how the data was collected and utilized:
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“We exploited Facebook to harvest millions of people’s profiles. And built models to exploit what we knew about them and target their inner demons,” Christopher Wylie, who worked with an academic at Cambridge University to collect the data, told the Observer. “That was the basis that the entire company was built on.”
Privacy advocates and other commentators reacted with alarm to the explosive new revelations, arguing that they show the dangers inherent in giving massive for-profit tech companies like Facebook access to users’ personal information.
“Facebook clearly can’t handle the monster it created, nor does it seem particularly interested in trying,” concluded the Huffington Post‘s Ashley Feinberg.