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...

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...

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...

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...

Economics offer different but complementary approaches to understanding privacy and security. For this inaugural contribution to the new In Our Orbit department, I was asked to explain briefly their methodological differences and similarities, and why they matter in our thinking about security...

We analyze personal data protection laws in the United States through the lenses of the economic theories of ex ante safety regulation, ex post liability and information disclosure. Specifically, we consider and contrast how legal and economic theories interpret privacy costs and the remedies to...

When card data is exposed in a data breach but has not yet been used to attempt fraud, the overall social costs of that breach depend on whether the financial institutions that issued those cards immediately cancel them and issue new cards or instead wait until fraud is attempted. This article...