Mobile security solutions focus on data to the exclusion of all else. When it comes to voice over mobile phones, the user is left naked in terms of security. This presentation will discuss the threat envelope, risks and best practices for securing mobile devices across the broad spectrum of applications: everything from e-mail, instant messaging and of course, mobile voice. How mobile voice is breached will also be discussed and illustrative examples of how voice can be intercepted with simple, inexpensive products will be presented. The dilemma facing OEMs who design these mobile devices and the numerous security challenges they face and the trade-offs that must be made to deliver a product will also be shown.