While staying on this forum I want to know can cellphones be hack like Computer's desktop and laptop's? You will see if someone is watching you at you laptop or desktop because the light will turn on right but as for cellphones no you will not see if someone is there watching your every move in your daily life basis.
yes, I'm not an expert on security, but globally system use the same layers of Network Protocol, there exist may be some hack who can use on all these system. After that, when all the system are open of development tier, each app installed can be open a rift. And yes, app make with bad security became an open door of your system.