Varun Chandrasekaran

I'm a doctoral candidate at the Department of Computer Sciences at the University of Wisconsin-Madison, where I primarily work with Suman Banerjee, Somesh Jha, Kassem Fawaz and Nicolas Papernot.
My research interests lie at the intersection of Security & Privacy and various domains such as Systems, Networking, Distributed Computing, and Machine Learning.
Previously, I obtained my MS degree from the Courant Institute of Mathematical Sciences (@NYU) under the guidance of Lakshmi Subramanian. I've obtained my B.Eng in Computer Science and Engineering, from College of Engineering, Guindy. I spent all of my childhood in Malleswaram, Bangalore meeting some wonderful people and making many cherished memories along the way.


  • Detecting Anomalous Inputs to DNN Classifiers By Joint Statistical Testing at the Layers

  • EXR: An Edge Accelerated System For Real-Time Video Communication

  • On the Effectiveness of Mitigating Data Poisoning Attacks with Gradient Shaping

  • Generating Semantic Adversarial Examples with Differentiable Rendering

  • Rearchitecting Classification Frameworks For Increased Robustness

  • Face-Off:Adversarial Face Obfuscation

  • BlackOut and Obfuscator: An Exploration of the Design Space for Privacy-Preserving Interventions for Voice Assistants

  • Published Drafts

  • Machine Unlearning

    In the Proceedings of IEEE Security & Privacy 2021
  • Press: IEEE Spectrum
  • Exploring Connections Between Active Learning and Model Extraction

    In the Proceedings of USENIX Security 2020
  • A Framework for Analyzing Spectrum Characteristics in Large Spatio-temporal Scales

    In the Proceedings of ACM MobiCom 2019
  • Traversing the Quagmire that is Privacy in your Smart-Home

    In the Proceedings of ACM SIGCOMM 2018 Workshop on IoT Security and Privacy
  • Alphacodes: Usable, Secure Transactions with Untrusted Providers using Human Computable Puzzles

    In the Proceedings of ACM DEV 2016
  • My Teaching Experience

  • Teaching Assistant - Networks and Mobile Systems CSCI-GA.2620-001

    Spring 2016

  • Teaching Assistant - Computer System Organisation CSCI-UA.0201-002

    Fall 2015

  • Teaching Assistant - Technology and Economic Development CSCI-UA.0380-003

    Spring 2015

  • Visits to Industry & Other Institutions

    University of Toronto & the Vector Institute

    I spent the Fall of 2019 in Toronto working with Nicolas Papernot and his wonderful group.

    Microsoft Research, India

    I spent the Spring of 2017 at MSR-I working under the guidance of Ranjita Bhagwan.

    IBM Research

    I spent the Summer of 2016 at IBM Research, at their Yorktown facility. I worked with the Next-Generation Data Centers team, under the guidance of John M. Tracey.

    AT&T Labs and Research

    I spent the Summer of 2015 at AT&T Labs, at their Middletown facility. I worked with the Design and Architecture team on designing, benchmarking and performing POC testing on Juniper VMX NFV solutions, specifically for the "Helper Router" solution. This reduced memory consumption on legacy routers, improving performance.

    Tata Communications

    I spent my senior year understanding and testing SDN and related security concepts, gaining deeper knowledge about the SDN Controller, Openflow and related concepts.


  • Effective Reviewing 1

  • Effective Reviewing 2

  • Effective Reviewing 3

  • Feel free to contact me

    The best way to contact me is through email.


    1210 West Dayton Street
    Madison, WI 53706