Facebook Also has The Information of those who do not have a Facebook profile



As the conversation about how Facebook handles its users’ data heats up, people are discovering that Facebook could know information about people who don’t even have a profile.
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It turns out that Facebook is probably storing information about you even if you don’t have an account with them.
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Mark Zuckerberg appeared before congress where he was extensively questioned about Facebook’s privacy, as well as the company’s approach to data and privacy.
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Republican Ben Luján asked him about the company’s use of ‘shadow profiles’ – a terms used to describe the collection of non-user data.
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He said: “Facebook has detailed profiles on people who have never signed up for Facebook, yes or no?”
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Zuckerberg had responded: “Congressman, in general we collect data on people who have not signed up for Facebook for security purposes to prevent the kind of scraping you were just referring to [reverse searches based on public info like phone numbers].”
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Lujan: “So these are called shadow profiles, is that what they’ve been referred to by some?”
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Zuckerberg: “Congressman, I’m not, I’m not familiar with that.”
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So, what information does Facebook know about its nonusers?
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When you first join Facebook, you will be offered ‘People You May Know’ – profiles of potential friends or work colleagues.
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What you might not know, is that when those friends upload their contact list onto Facebook servers, that information was used to create a ‘shadow profile’ of you so that when you join, you will be recommended as a friend.
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These shadow profiles are completely private.
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It means that Facebook can learn a lot about the social circle, and to an extent the habits of non-Facebook users


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