Did you know that your Facebook mobile app has complete access to your phone's microphone?

Recently, an expert has come out to claim that Facebook may be listening in on your conversations. Kelli Burns, a mass communication professor at the University of South Florida, believes the app might be using people's microphones to gather data on the content of people's conversations.

Facebook admits that the app is capable of listening to what's happening around it — but claims the feature simply identifies what people are listening to or watching as means of conveniently posting about it.

Currently, the feature is only available in the U.S. and has been available for a couple of years according to Facebook, although recent warnings from Burns have drawn renewed interest.