Due to the ability of cell phone providers to use cell phone towers to pinpoint users' locations, federal E911 requirements, the increasing popularity of GPS-capabilities in cellular phones, and the rise of cellular phones for Internet use, a plethora of new applications have been developed that...

Although online retailers detail their privacy practices in online privacy policies, this information often remains invisible to consumers, who seldom make the effort to read and understand those policies. This paper reports on research undertaken to determine whether a more prominent display of...

In this paper we integrate insights from diverse islands of research on electronic privacy to offer a holistic view of privacy engineering and a systematic structure for the discipline's topics. First we discuss privacy requirements grounded in both historic and contemporary perspectives on...

Internet of Things (IoT) devices create new ways through which personal data is collected and processed by service providers. Frequently, end users have little awareness of, and even less control over, these devices’ data collection. IoT Personalized Privacy Assistants (PPAs) can help overcome...

Privacy and security tools can help users protect themselves online. Unfortunately, people are often unaware of such tools, and have potentially harmful misconceptions about the protections provided by the tools they know about. Effectively encouraging the adoption of privacy tools requires...

Finding information about privacy practices can be difficult: privacy policies often do not present this information in an accessible way. People typically do not know how or for what purpose their personal information, gathered online, will be used. When asked, people frequently express...

Anecdotal evidence and scholarly research have shown that a significant portion of Internet users experience regrets over their online disclosures. To help individuals avoid regrettable online disclosures, we employed lessons from behavioral decision research and research on soft paternalism to...

Anecdotal evidence and scholarly research have shown that Internet users may regret some of their online disclosures. To help individuals avoid such regrets, we designed two modifications to the Facebook web interface that nudge users to consider the content and audience of their online...

In a series of experiments, we examined how the timing impacts the salience of smartphone app privacy notices. In a web survey and a field experiment, we isolated different timing conditions for displaying privacy notices: in the app store, when an app is started, during app use, and after app...

By allowing individuals to be permanently connected to the Internet, mobile devices ease the way information can be accessed and shared online, but also raise novel privacy challenges for end users. Recent behavioral research on “soft” or “asymmetric” paternalism has begun exploring ways...