I am running Android KitKat 4.4.2 on a Samsung Galaxy SIII Neo. As a security measure I would like to prevent my phone being automatically mounted whenever I attach a USB cable from my mobile device to a PC. This way if someone steals my device they will not be able to read or copy files stored on my mobile device. However I am not sure how to turn this feature on or off.
I have read this post but I actually have USB debugging enabled under
Settings | General | Developer Options. But the answer found there does not seem to apply to my device.