A first look into Utiq: Next-generation cookies at the ISP level

Fuente: arXiv
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Auteurs principaux: Castell-Uroz, Ismael, Barlet-Ros, Pere
Format: Preprint
Publié: 2024
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author Castell-Uroz, Ismael
Barlet-Ros, Pere
author_facet Castell-Uroz, Ismael
Barlet-Ros, Pere
contents Online privacy has become increasingly important in recent years. While third-party cookies have been widely used for years, they have also been criticized for their potential impact on user privacy. They can be used by advertisers to track users across multiple sites, allowing them to build detailed profiles of their behavior and interests. However, nowadays, many browsers allow users to block third-party cookies, which limits their usefulness for advertisers. In this paper, we take a first look at Utiq, a new way of user tracking performed directly by the ISP, to substitute the third-party cookies used until now. We study the main properties of this new identification methodology and their adoption on the 10K most popular websites. Our results show that, although still marginal due to the restrictions imposed by the system, between 0.7% and 1.2% of websites already include Utiq as one of their user identification methods.
format Preprint
id arxiv_https___arxiv_org_abs_2405_09205
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A first look into Utiq: Next-generation cookies at the ISP level
Castell-Uroz, Ismael
Barlet-Ros, Pere
Cryptography and Security
Networking and Internet Architecture
Online privacy has become increasingly important in recent years. While third-party cookies have been widely used for years, they have also been criticized for their potential impact on user privacy. They can be used by advertisers to track users across multiple sites, allowing them to build detailed profiles of their behavior and interests. However, nowadays, many browsers allow users to block third-party cookies, which limits their usefulness for advertisers. In this paper, we take a first look at Utiq, a new way of user tracking performed directly by the ISP, to substitute the third-party cookies used until now. We study the main properties of this new identification methodology and their adoption on the 10K most popular websites. Our results show that, although still marginal due to the restrictions imposed by the system, between 0.7% and 1.2% of websites already include Utiq as one of their user identification methods.
title A first look into Utiq: Next-generation cookies at the ISP level
topic Cryptography and Security
Networking and Internet Architecture
url https://arxiv.org/abs/2405.09205