Social networks can learn about you through your friends

Some people might think that online privacy is, well, a private matter. If you don’t want personal information getting out online, then you can just not put it out there. Right? Wrong. Keeping your information private isn’t solely your choice anymore. Friends can play a big role in your privacy, new data show. And the more they share on a social network, the more that social network can figure out about you.

Someone who joins a social network — such as Snapchat, Instagram or Facebook —wants to find their friends. Often, the social network can help. Many apps offer to import contact lists from your phone or e-mail. These apps then use that information to find matches with people already in the network, and suggest them to you.

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Source: test