Our mobile devices and the apps that run on them have a unique insight into our lives. We use them for communication, entertainment, shopping, photography, navigation, and myriad other purposes. Consequently, apps have access to a great deal of information about our preferences, our contacts, where we go, what we buy, and who we are. As app developers, we need to be cognizant of the information being handled by our apps and to safeguard it accordingly. The protection of sensitive information is