Because risk is a multi-dimensional concept [15, 16], multi-dimensional risk information also needs to be dis­played for users that want a more detailed view of the risks posed by an app.
the main focus of the present work was (1) to identify the most meaningful dimensions of risk and understand users perceptions of those risks, and (2) to better understand other sources of risk information (in addition to permissions) and how such information is used by experts and average Android users to assess apps.