Our phones are the greatest surveillance devices that have ever been created in the entire history of humanity.  When you carry a phone with you, you are carrying around a microphone, a camera, a location tracking device and a social media hub all rolled into one.  Tech companies are literally collecting thousands upon thousands of data points on each one of us, and all of that information is fed into extremely sophisticated algorithms.

There are many apps that specifically request access to your microphone or camera.

Some apps want access to both.

Giving apps such permission is a very dangerous thing to do.

There are some apps that are specifically designed to pick out keywords from conversations that you are having with your contacts.

That is just one of the reasons why you may notice an ad for something that you were just discussing with a friend pop up.

Your phone has the ability to track everywhere that you go as well.