In 2014, Cambridge Analytica, a voter-profiling company that would later provide services for Donald Trump’s 2016 presidential campaign, reached out with a request on Amazon’s “Mechanical Turk” platform, an online marketplace where people around the world contract with others to perform various tasks. Cambridge Analytica was looking for people who were American Facebook users. It offered to pay them to download and use a personality quiz app on Facebook called thisisyourdigitallife.
About 270,000 people installed the app in return for $1 to $2 per download. The app “scraped” information from their Facebook profiles as well as detailed information from their friends’ profiles. Facebook then provided all this data to the makers of the app, who in turn turned it over to Cambridge Analytica. …
This wasn’t a breach in the technical sense. It is something even more troubling: an all-too-natural consequence of Facebook’s business model, which involves having people go to the site for social interaction, only to be quietly subjected to an enormous level of surveillance. CONT.
Zeynep Tufekci (UNC), New York Times