Facebook CEO Mark Zuckerberg is attempting to convince Congress and most Facebook users that his company takes the risks of peoples privacy seriously. Facebook does allow researchers access to personal data for academic studies but not for targeting users.

"Mark Zuckerberg has been very clear that Facebook doesn't sell your data," KTVA digital content manager Liz Thomas said. "What they do use is your information to target ads to you."

The concern many people have is that their personal information is being sold. In fact, only a small fraction of the users whose personal information acquired by Cambridge Analytica authorized giving data to a third party.

"What Cambridge Analytica has done is, they had information they told Facebook they were going to get rid of," Thomas said. "Facebook didn't follow through and do their due diligence to make sure Cambridge Analytica didn't have that information anymore."

There are some ways you can control what Facebook ads get sent your way.

"My advice would be to get into your security settings and find out exactly what you are sharing," Thomas said. "Get into the Facebook advertising tool and see which third parties you've already interacted with and which ones are already targeting you for ads."

To do this, go to your Facebook page and click the down arrow next to the question mark icon on the top right portion of the page. Then go to settings, then on the left-hand side, looks for the ads icon. This page will show you everything to do with Facebook and advertisements.

"Now this page is going to show you everything to do with Facebook and advertisements," Thomas said. "Starting with advertisers who have already made contact with me in one form or another, and as you can see, there are lots of them. Already, I can tell that they know my relationship status, who I work for, my job title and where I went to school."

Thomas also says to turn off the "cookies" settings.

"Cookies basically follow you to all the different sites you go to," Thomas said. "That's how advertisers know who to target-- by the interactions."

Turning cookies off may help, along with any other setting you don't want others to know about you. Also in Chrome, there is an incognito window that won't save your browsing history. Or, you can also clear your browsing history after each use along with cookies and data. 

Avoiding Facebook quizzes is also a big way many companies get more information about you as most people don't read the fine print and don't know what they are allowing in order to play.

"It's really just being very sure about your privacy settings," Thomas said. "Be proactive about it and don't have any third party apps on Facebook that are monitoring what you do. In the end, people have to remember that they have the power to control what is on social media."

To find out if your information was mined by Cambridge Analytica, click the link here.

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