I am not tech savy at all. My 12 year old daughter has twice now came home from her fathers house upset because his girlfriend knows her text message conversations. This time the GF showed my daughter what looked like a pic of the text message. Both times the GF also knew conversations that weren't texted & she wasn't on the telephone either. (When my daughter was at my house). I understand I can reset the phone, but how can I tell if she really did something to the phone? The GF works at a small cellphone company. Also the cellphone is in my present husbands contract. I feel that the possible spying is aimed at me, not necessarily my daughter. Any thoughts?