Facebook created a tool to hide your data from apps but it never launched

One of the most startling revelations of Facebook's ongoing Cambridge Analytica controversy is just how easy it was for a third-party developer to access millions of people's personal data without their knowledge — even if they hadn't downloaded the app themselves.

That's because Facebook's policies prior to 2014 were much more lax than they are today. At the time, apps could scrape data from both their users and the friends of those users, unless you had your privacy setting sufficiently locked down.

The company actually built an "Anonymous Login" tool that was specifically created so that Facebook users could log into third-party services without making all of their data available to developers.  Read more...

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