Phone tapping? how doi stop someoen from going into my phone when there not touching it and reading my message

Question

apparently you can do it and i think my step dad has done it to my phone hementioned somethign about you can do it to anyone as long as you have there number?

please how do i stop this?

Answer 1

You should have a "PIN" associated with your phone.

Change it to something only you know.

Answer 2

If it is a moblie phone and he is the primary. Then yes he can. The only way is to get your own phone.