During the past few years, mostly as a result of the GDPR and the CCPA, websites have
started to present users with cookie consent banners. These banners are web forms where …

Data is becoming an indispensable production factor for the modern economy, matching or
exceeding in importance traditional factors such as land, infrastructure, labor and capital. As …

A recurrent mantra of the technology industry is that all forms of 'friction'should be eliminated
from online interactions (especially commercial transactions). In this context,'friction'refers to …

In recent years, Header Bidding (HB) has gained popularity among web publishers,
challenging the status quo in the ad ecosystem. Contrary to the traditional waterfall standard …

Targeted online advertising is a well-known but extremely opaque phenomenon. Though
the targeting capabilities of the ad tech ecosystem are public knowledge, from an outside …

Several targeted advertising platforms offer transparency mechanisms, but researchers and
civil societies repeatedly showed that those have major limitations. In this paper, we propose …

We present a Federated Learning (FL) based solution for building a distributed classifier
capable of detecting URLs containing GDPR-sensitive content related to categories such as …

Although digital advertising fuels much of today's free Web, it typically does so at the cost of
online users' privacy, due to the continuous tracking and leakage of users' personal data. In …

Donations to charity-based crowdfunding environments have been on the rise in the last few
years. Unsurprisingly, deception and fraud in such platforms have also increased, but have …

We present a novel technique for modulating the appearance frequency of a few tokens
within a dataset for encoding an invisible watermark that can be used to protect ownership …