Many threads our there, but i feel i am stupid and just cant find the answer to this. So please give me answer again beacuse i lost my sleep on this. I fear that bad people may have somehow remotly controling my phone. They had physical access to my Sony Xperia Z3, and although i have lockscreen password i feel they may have known it. Now after i realized that, i used "Restore to factory settings" and i forgot about the problem, but friends of mine told me that hey may have rooted the phone and installed something in the system itself. I used Root Checker but it says there is no Root Access, so the phone is not currently rooted.Is it possible that the phone was rooted for the hours they had access to it, than something was installed deep inside the phone and then the phone was unrooted again, so no root access apears on Root Checker. I fear mostly about some remote access, like is it possible they to run my phone while i sleep for example. I always check my accounts from which ip they were logged and that makes me calm, but then i realized that if they remotely use my own phone it would be my own ip so i will never find out it's someone else accessing my accounts. Belive me, those people are really hostile towards me and if they can access my facebook and other accounts by remote controling my own phone i am ready to buy a new phone immidietly. And most importanly, if some remote controll is installed, could it boot the phone while its locked and asleep (i assume thay have installed keylogger as well so they will always know my access passowrd, so i switched to password pattern, i hope keylogger cant detect it)I know how impossible that sounds but lets assume those people are psychopaths and really hate me. So this was my question, sort of speaking. Bless u all