Recent works showed that websites can detect browser extensions that users install and
websites they are logged into. This poses significant privacy risks, since extensions and …

Modern smartphone sensors can be leveraged for providing novel functionality and greatly
improving the user experience. However, sensor data can be misused by privacy-invasive or …

Smartphone sensors can be leveraged by malicious apps for a plethora of different attacks,
which can also be deployed by malicious websites through the HTML5 WebAPI. In this …

Browser fingerprinting is a technique that collects information about the browser
configuration and the environment in which it is running. This information is so diverse that it …

With the aim of increasing online privacy, we present a novel, machine-learning based
approach to blocking one of the three main ways website visitors are tracked online …

Interactions on the Internet require trust between each involved party. Internet entities
assume, at the same time, several roles, each having their own interests and motivations; …

In this work, we introduce FPTracker as a stan-dalone, portable and practical browser that
utilizes static and dynamic analysis to obtain concise results on a large set of websites. In …

On-line security is a very important aspect of Internet browsing, so a lot of research has been
targeting confidentiality, integrity, authentication, non-repudiation and availability of on-line …

The fast moving technologies on the Web provide users, developers and researchers with
increasing challenges when it comes to user privacy. The domain of browser fingerprinting …

In this HDR manuscript, I describe a 9-year journey I took in my research since obtaining my
PhD in November 2011 until the end of 2020. This research has started during my postdoc …