Abstract. Each time a user installs

Abstract. Each time a user installs an application on their Android
phone they are presented with a full screen of information describing
what access they will be granting that application. This information
is intended to help them make two choices: whether or not they trust
that the application will not damage the security of their device and
whether or not they are willing to share their information with the application,
developer, and partners in question. We performed a series
of semi-structured interviews in two cities to determine whether people
read and understand these permissions screens, and to better understand
how people perceive the implications of these decisions. We find that the
permissions displays are generally viewed and read, but not understood
by Android users. Alarmingly, we find that people are unaware of the
security risks associated with mobile apps and believe that app marketplaces
test and reject applications. In sum, users are not currently
well prepared to make informed privacy and security decisions around
installing applications.