Karthika Subramani

Research Engineer II


I am a research scientist at the Georgia Institute of Technology, affiliated with the Astrolavos Lab. My research primarily explores the intersection of Usable Web Security, Web Attacks and Defenses, and Network Attack and Defenses. Most of my publications feature innovative solutions that quantify various forms of abuse and offer insights critical for developing defenses. This often involves scaling solutions through automation,, gaining a deep understanding of the attacks in question, and applying Machine Learning techniques to specific tasks.

I earned my PhD in Computer Science from the University of Georgia, where I had the privilege of collaborating with Roberto Perdisci in his esteemed Network and Security Intelligence lab. During my time there, I gained valuable expertise and knowledge in the field.

I aim to channel my passion for this field towards my goal of making cybersecurity more accessible and user-friendly. By bridging the gap between intricate security measures and end users, I’m on a mission to create a safer online world for everyone — one paper at a time.


May 21, 2024 Our paper titled “Characterizing and measuring in-the-wild CAPTCHA attacks” will be presented at IEEES&P’24.
May 16, 2024 Presenting our paper “Discovering and Measuring CDNs prone to Domain Fronting” at TheWebConf’24 in Singapore.
Jun 1, 2023 Program Committee Member for Annual Computer Security Applications Conference (ACSAC 2023)
Mar 17, 2023 Served as Judge of Poster Competition in Women in Cyber Security 2023(WiCyS 2023)
Feb 1, 2023 Program Committee Member for 4th Workshop of Designing Security for the Web(SecWeb 2023)

selected publications

  1. IMC
    When Push Comes to Ads: Measuring the Rise of (Malicious) Push Advertising
    Karthika Subramani, Xingzi Yuan, Omid Setayeshfar, and 3 more authors
    In Proceedings of the ACM Internet Measurement Conference, 2020
  2. IMC
    PhishInPatterns: Measuring Elicited User Interactions at Scale on Phishing Websites
    Karthika Subramani, William Melicher, Oleksii Starov, and 2 more authors
    In Proceedings of the 22nd ACM Internet Measurement Conference, 2022
  3. DIMVA
    Detecting and Measuring In-The-Wild DRDoS Attacks at IXPs
    Karthika Subramani, Roberto Perdisci, and Maria Konte
    In Detection of Intrusions and Malware, and Vulnerability Assessment: 18th International Conference, DIMVA 2021, Virtual Event, July 14–16, 2021, Proceedings, 2021
    SoK: Workerounds - Categorizing Service Worker Attacks and Mitigations
    Karthika Subramani, Jordan Jueckstock, Alexandros Kapravelos, and 1 more author
    In 2022 IEEE 7th European Symposium on Security and Privacy (EuroS&P), 2022