Advertisers increasingly use personalized advertising that is tailored to consumers based on
data concerning their preferences and behaviors, which is gained by collecting their …

We conducted an in-lab user study with 24 participants to explore the usefulness and
usability of privacy choices offered by websites. Participants were asked to find and use …

Website privacy policies sometimes provide users the option to opt-out of certain collections
and uses of their personal data. Unfortunately, many privacy policies bury these instructions …

A third-party cookie is a tracking code set by a third-party platform or a technology provider
on the website the user is visiting. This small amount of text identifies users online, reveals …

Targeted advertising has transformed the marketing landscape for a wide variety of
businesses, by creating new opportunities for advertisers to reach prospective customers by …

As more users adopt VPNs for a variety of reasons, it is important to develop empirical
knowledge of their needs and mental models of what a VPN offers. Moreover, studying VPN …

Virtual Private Networks (VPNs) are often used to protect online users' privacy, but many
VPNs do not guarantee privacy and may even compromise user privacy through leakage of …

Advertising and Analytics (A&A) companies have started collaborating more closely with one
another due to the shift in the online advertising industry towards Real Time Bidding (RTB) …

Differential privacy protects an individual's privacy by perturbing data on an aggregated
level (DP) or individual level (LDP). We report four online human-subject experiments …

Web tracking has evolved to become a norm on the Internet. As a matter of fact, the web
tracking market has grown to raise billions of dollars. Privacy cautious web practitioners and …