Who knows you better, your friends or Facebook?

Does Facebook know you best?

CHARLOTTE, NC (WBTV) - Is Facebook your new "BFF"?

It might be because it turns out there's a good chance it knows more about you than your real-life friends or family.

A set of researchers taught a computer to predict your behavior and understand your personality simply based on the things you say you like on Facebook.

Teams working at the University of Cambridge and Stanford University studied Facebook "likes" to create an algorithm.

Click here to read their full paper.

Our cyber expert, Theresa Payton, CEO of Fortalice Solutions, provides you with tips on what you need to know to protect your privacy. Her information follows:

1. Know your digital trails - you don't have to ban all "like" buttons but think more deliberately about what you click on

2. Know your digital rights - make it clear to the companies that you do business with online and your elected officials that there's a difference between customer service and cyberstalking you.

3. Know your privacy settings - check in on the Facebook and other social media sites' privacy settings often to make sure you know the latest options available to you.

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