Usable privacy and security researchers have developed a variety of approaches to
represent risk to research participants. To understand how these approaches are used and …

Information about the privacy and security of Internet of Things (IoT) devices is not readily
available to consumers who want to consider it before making purchase decisions. While …

While the literature on permissions from the end-user perspective is rich, there is a lack of
empirical research on why developers request permissions, their conceptualization of …

In this paper we present a methodology to analyze users' concerns and perspectives about
privacy at scale. We leverage NLP techniques to process millions of mobile app reviews and …

Recent industrial and academic research has focused on data-driven analytics with
smartphones by collecting user interaction, context, and device systems data through …

Current smartphone operating systems enable users to manage permissions according to
their personal preferences with a runtime permission model. Nonetheless, the systems …

We conduct a global study on the behaviors, expectations and engagement of 1,719
participants across 10 countries and regions towards Android application permissions …

Modern mobile operating systems implement an ask-on-first-use policy to regulate
applications' access to private user data: the user is prompted to allow or deny access to a …

In-app privacy notices can help smartphone users make informed privacy decisions.
However, they are rarely used in real-world apps, since developers often lack the …

Permission is the fundamental security mechanism for protecting user data and privacy on
Android. Given its importance, security researchers have studied the design and usage of …