Facebook was in the news recently after it  admitted to a year-long data breach. At first it said the breach  affected only 6 million people, so it wasn't big news. Remember that  Facebook has a billion users.
However, the breach did reveal something that should worry every Facebook user. 
I'm talking about shadow profiles.
"Shadow profiles" sound like something from a spy thriller movie, but  they're very real. It's hidden data that Facebook stores about you that  you didn't provide.
Read More What are Facebook 'shadow profiles'?
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