activity
20192026
most citedWebGraph: Capturing Advertising and Tracking Information Flows for Robust Blocking

7 citations · 10 across the 9 of their papers we have counts for

collaborators

9 papers

cs.CR2026

From Monoliths to Swarms: A Study of Attack Surface Evolution in the Transition to Multi-Agent Web Systems

Yashaswi Malla, Sandra Siby

Large Language Model (LLM)-based web agents are increasingly evolving from single-agent systems (SAS) to multi-agent systems (MAS). While MAS can lead to improved task performance…

cs.CY2026

Auditing the Impact of Cross-Site Web Tracking on YouTube Political and Misinformation Recommendations

Salim Chouaki, Savaiz Nazir, Sandra Siby

YouTube has today become the primary news source for many users, which raises concerns about the role its recommendation algorithm can play in the spread of misinformation and poli…

cs.CR2026

Reckless Designs and Broken Promises: Privacy Implications of Targeted Interactive Advertisements on Social Media Platforms

Julia B. Kieserman, Athanasios Andreou, Laura Edelson +2

Popular social media platforms TikTok, Facebook and Instagram allow third-parties to run targeted advertising campaigns on sensitive attributes in-platform. These ads are interacti…

cs.CR2024

SINBAD: Saliency-informed detection of breakage caused by ad blocking

Saiid El Hajj Chehade, Sandra Siby, Carmela Troncoso

Privacy-enhancing blocking tools based on filter-list rules tend to break legitimate functionality. Filter-list maintainers could benefit from automated breakage detection tools th…

cs.CR2023

PURL: Safe and Effective Sanitization of Link Decoration

Shaoor Munir, Patrick Lee, Umar Iqbal +2

While privacy-focused browsers have taken steps to block third-party cookies and mitigate browser fingerprinting, novel tracking techniques that can bypass existing countermeasures…

cs.CR2022★ 2 cited

COOKIEGRAPH: Understanding and Detecting First-Party Tracking Cookies

Shaoor Munir, Sandra Siby, Umar Iqbal +3

As third-party cookie blocking is becoming the norm in browsers, advertisers and trackers have started to use first-party cookies for tracking. We conduct a differential measuremen…

cs.CR2022★ 1 cited

You get PADDING, everybody gets PADDING! You get privacy? Evaluating practical QUIC website fingerprinting protections for the masses

Sandra Siby, Ludovic Barman, Christopher Wood +3

Website fingerprinting (WF) is a well-know threat to users' web privacy. New internet standards, such as QUIC, include padding to support defenses against WF. Previous work only an…

cs.CR2021★ 7 cited

WebGraph: Capturing Advertising and Tracking Information Flows for Robust Blocking

Sandra Siby, Umar Iqbal, Steven Englehardt +2

Millions of web users directly depend on ad and tracker blocking tools to protect their privacy. However, existing ad and tracker blockers fall short because of their reliance on t…

cs.CR2019

Encrypted DNS --> Privacy? A Traffic Analysis Perspective

Sandra Siby, Marc Juarez, Claudia Diaz +2

Virtually every connection to an Internet service is preceded by a DNS lookup which is performed without any traffic-level protection, thus enabling manipulation, redirection, surv…