>Specialists with carefully chosen phones can achieve security that is asymptotically as good as a recent iPhone. Who cares? Security conditional on expertise,

>Specialists with carefully chosen phones can achieve security that is asymptotically as good as a recent iPhone. Who cares? Security conditional on expertise, extraordinary caution, and time investment is WORTHLESS. Security is more about guiding (or forcing) human beings to the right behavior than it is about making technical mechanisms available for the willing and able. Your security model should assume that the user is stupid, grossly negligent, and in the case they are the employee or other agent of an organization, somewhat hostile to the interests of the organization.