Hi, I had a bad day and it happened so that my iPhone 5S with ios 9.3.1 slipped out of my pocket somewhere in the city. When I found out that I'm missing my device (max 10 minutes since last seen in my palm) it was already turned off which means no use of "Find my iPhone" app. My device had Touch ID activated + immediate passcode required. I had all possible stock security options up and running, and finally there is no way to use it since my device is offline. Why on earth Apple let's one to turn off the device without passcode requirement etc. The first thing after stealing an iPhone, that he will turn the device off, then there is no use of all that fancy "Find my iPhone" stuff. ITS TURNED OFF.... Ugh I'm frustrated.. Anyway, what occurred strange to me is that right now when I log on to my iCloud and check my devices, there is no sign of my iPhone?!?! Well, how could it be possible??? It had all the security stuff so no way that someone could have just deleted it from the list and turn off the tracking... Or could he?? Please tell me. Should I be concerned that all my stuff that was securely locked now is exposed to risk? TIA guys..