Bust outside CSE building at UCSD
Sumanth Rao
Ph.D. student, Computer Science
UC San Diego
Bust outside CSE building at UCSD
Education:
Ph.D. in Computer Science (expected 2027)
University of California, San Diego

M.S. in Computer Science (2021 - 2025)
University of California, San Diego

B.S. in Computer Science (2016 - 2020)
PES University, Bangalore

I am a PhD student at the Department of Computer Science and Engineering at the University of California, San Diego. My advisors are Stefan Savage and Geoff Voelker.

My work centers on empirical analysis of real-world threats, including ransomware attacks on hospitals, large-scale email abuse, automotive security, and broader threats to critical infrastructure. I am a part of the Sysnet and CryptoSec research groups at UC San Diego. My hometown is Bangalore (ಬೆಂಗಳೂರು), India.

Recent Publications (All publications »)
Paper under embargo
Jerry Yu*, Yibo Wei*, Sumanth Rao, Mohak Vaswani, Jefferson Chien, Christian Dameff, Nishant Bhaskar, Aaron Schulman.
To appear at USENIX Security, Baltimore, MD, August 2026

Lost in Translation: Text Message Spoofing via Email
Sumanth Rao, Ye Shu, Stefan Savage, Aaron Schulman, Geoffrey M. Voelker, Enze Liu.
IEEE Symposium on Security and Privacy (Oakland), San Francisco, May 2026
[pdf] - [poster] - [slides] - Distinguished Paper Award - News: TechXplore, UCSD News

Patient Care Technology Disruptions Associated With the CrowdStrike Outage
Jeffrey L. Tully*, Sumanth Rao*, Isabel Straw, Rodney A. Gabriel, Chris Longhurst, Stefan Savage, Geoffrey M. Voelker, Christian J. Dameff.
JAMA Network Open, July 2025
[pdf] - News: Wired, Forbes

Unfiltered: Measuring Cloud-based Email Filtering Bypasses
Sumanth Rao, Enze Liu, Grant Ho, Geoffrey M. Voelker, Stefan Savage.
ACM Web Conference (WWW), Singapore, May 2024
Education
Ph.D. in Computer Science
Expected 2027
University of California, San Diego
M.S. in Computer Science
2021 - 2025
University of California, San Diego
B.S. in Computer Science
2016 - 2020
PES University, Bengaluru
Industry Experience
Corelight
Research Intern (Jun 2025 - Sep 2025)
Corelight Labs. Mentors: Yacin Nadji, Vern Paxson. Fingerprinted malicious domain controllers in E/W traffic from Zeek logs.

Google
Software Engineering Intern (Jun 2022 - Sep 2022)
Virtual Cluster, Google Cloud Platforms. Improved user experience when spawning new Borg clusters.

Citrix
Software Engineer (Aug 2020 - Aug 2021)
Citrix Licensing team. Designed a Docker-based automation framework deployed via a hybrid cloud model.

Awards

- 2026. CSE Doctoral Award for Excellence in Service and Leadership, UC San Diego.
- 2026. Distinguished Paper Award, IEEE Symposium on Security and Privacy (Oakland) - News
- 2024. Finalists, NatSec Hackathon (Stanford DEFCON and Shield Capital)
- 2021-2022. Receipent of JN Tata Scholarship.

Services

- Program Committee, Research in Attacks, Intrusions and Defenses (RAID) 2026
- CSE Chezbob Coordinator, UC San Diego (2026-2027)
- CSE Visit Day Coordinator, UC San Diego (2026)
- Allyship Co-Chair, UCSD Graduate Women in Computing (2023-2024)
- VP External, Jacobs Graduate Student Council (JGSC) Member, UC San Diego (2021-2023)

Talks

- Lost in Translation: Text Message Spoofing via Email
IEEE Symposium on Security and Privacy (Oakland), May 2026
- Measuring hospital ransomware Attacks
CAIDA AIMS-5, Feb 2025
- Unfiltered: Measuring Cloud-based Email Filtering Bypasses
The Web Conference, May 2024
- Panel 6: Mobile Device Security
FTC PrivacyCon, March 2024
- Having a great GSoC as an Open Source Newbie!
Google Open Source YouTube, Nov 2022

Open Source

I'm a big advocate for Open Source and have been involved in Google Summer of Code (GSoC) for a few years now. I've mentored five GSoCers (2020 (1), 2020 (2), 2021, 2024) during this time. In fact, I was myself a GSoC student in 2019 with the Zulip Open Source Project.





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