This PDF put out by apple is fairly accessible and describes these measures in some depth if you're interested. http://images.apple.com/ipad/business/docs/iOS_

This PDF put out by apple is fairly accessible and describes these measures in some depth if you're interested. http://images.apple.com/ipad/business/docs/iOS_Security_May12.pdf http://images.apple.com/ipad/business/docs/iOS_Security_May1...