When I connect my HTC Sensation (firmware: CM 10) to some PC I need to enter a passcode (to unlock the phone) and explicitly allow mounting as usb drive. But when I connect SGN2 it enables MTP or PTP without confirmation so, for example, if I ask some guy to charge my phone from his laptop he will immediately gain access to all photos on the phone!
So I wonder how to disable this feature. The configuration dialog allows me to choose which mode to use, not to disable multimedia transfer.