SecGPT: An Execution Isolation Architecture for LLM-Based Systems

Yuhao Wu, Franziska Roesner, Tadayoshi Kohno, Ning Zhang, Umar Iqbal

arXiv:2403.04960, 2024.
Poster at IEEE Symposium on Security & Privacy (Oakland), 2024.
code ]


LLM Platform Security: Applying a Systematic Evaluation Framework to OpenAI's ChatGPT Plugins

Umar Iqbal, Tadayoshi Kohno, Franziska Roesner

arXiv:2309.10254, 2023.

Appeared at FTC PrivacyCon, 2024

FAQs ] [ talk video ] [ Cybersecurity Law Report ] [ Montreal AI Ethics Institute ]


PURL: Safe and Effective Sanitization of Link Decoration

Shaoor Munir, Patrick Lee, Umar Iqbal, Sandra Siby, Zubair Shafiq

USENIX Security Symposium (USENIX), 2024.


Opted Out, Yet Tracked: Are Regulations Enough to Protect Your Privacy?

Zengrui Liu, Umar Iqbal, Nitesh Saxena

Privacy Enhancing Technologies Symposium (PETS), 2024.
The Register ]


Tracking, Profiling, and Ad Targeting in the Alexa Echo Smart Speaker Ecosystem

Umar Iqbal, Pouneh Nikkhah Bahrami, Rahmadi Trimananda, Hao Cui, Alexander Gamero-Garrido, Daniel Dubois, David Choffnes, Athina Markopoulou, Franziska Roesner, Zubair Shafiq

ACM Internet Measurement Conference (IMC), 2023.

Best paper award

Appeared at FTC PrivacyCon, 2022

talk video ] [ slides ] [ code ] [ privacycon talk video ] [ podcast interview ] [ TheVerge ] [ Axios ]


CookieGraph: Measuring and Countering First-Party Tracking Cookies

Shaoor Munir, Sandra Siby, Umar Iqbal, Steven Englehardt, Zubair Shafiq, Carmela Troncoso

ACM Conference on Computer and Communications Security (CCS), 2023.
talk video ]


Gender Biases in Tone Analysis: A Case Study of a Commercial Wearable Device

Christina Yeung, Umar Iqbal, Tadayoshi Kohno, Franziska Roesner

ACM Conference on Equity and Access in Algorithms, Mechanisms, and Optimization (EAAMO), 2023.


Online Advertising in Ukraine and Russia During the 2022 Russian Invasion

Christina Yeung, Umar Iqbal, Yekaterina O'Neil, Tadayoshi Kohno, Franziska Roesner

The Web Conference (WWW), 2023.

Spotlight paper (candidate for the best paper award)



Khaleesi: Breaker of Advertising and Tracking Request Chains

Umar Iqbal, Charlie Wolfe, Charles Nguyen, Steven Englehardt, Zubair Shafiq

USENIX Security Symposium (USENIX), 2022.
code ] [ talk video ] [ slides ]


WebGraph: Capturing Advertising and Tracking Information Flows for Robust Blocking

Sandra Siby, Umar Iqbal, Steven Englehardt, Zubair Shafiq, Carmela Troncoso

USENIX Security Symposium (USENIX), 2022.
code ] [ talk video ]


FP-Radar: Longitudinal Measurement and Early Detection of Browser Fingerprinting

Pouneh Nikkhah Bahrami, Umar Iqbal, Zubair Shafiq

Privacy Enhancing Technologies Symposium (PETS), 2022.
talk video ] [ slides ]


Eluding ML-based Adblockers With Actionable Adversarial Examples

Shitong Zhu, Zhongjie Wang, Xun Chen, Shasha Li, Keyu Man, Umar Iqbal, Zhiyun Qian, Kevin S Chan, Srikanth V Krishnamurthy, Zubair Shafiq, Yu Hao, Guoren Li, Zheng Zhang, and Xiaochen Zou

Annual Computer Security Applications Conference (ACSAC), 2021.
code ]


Fingerprinting the Fingerprinters: Learning to Detect Browser Fingerprinting Behaviors

Umar Iqbal, Steven Englehardt, and Zubair Shafiq

IEEE Symposium on Security & Privacy (Oakland), 2021.
code ] [ promo video ] [ talk video ] [ slides ] [ poster ] [ ZDNet ] [ Venture Beat ]


AdGraph: A Graph-Based Approach to Ad and Tracker Blocking

Umar Iqbal, Peter Snyder, Shitong Zhu, Benjamin Livshits, Zhiyun Qian, and Zubair Shafiq

IEEE Symposium on Security & Privacy (Oakland), 2020.

Best applied research paper (3rd), CSAW NYU Tandon

code ] [ promo video ] [ talk video ] [ slides ] [ official announcement ] [ CNET ]


ShadowBlock: A Lightweight and Stealthy Adblocking Browser

Shitong Zhu, Umar Iqbal, Zhongjie Wang, Zhiyun Qian, Zubair Shafiq, and Weiteng Chen

The Web Conference (WWW), 2019.
code ] [ demo ] [ poster ]


The Ad Wars: Retrospective Measurement and Analysis of Anti-Adblock Filter Lists

Umar Iqbal, Zubair Shafiq, and Zhiyun Qian

ACM Internet Measurement Conference (IMC), 2017.
slides ] [ poster ] [ Performance IN ] [ Bleeping Computer ]


Malware Slums: Measurement and Analysis of Malware on Traffic Exchanges

Salman Yousaf, Umar Iqbal, Shehroze Farooqi, Raza Ahmad, Zubair Shafiq, and Fareed Zaffar

46th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), 2016.