Inyangson, David*, Sarah Radway*, Tushar Jois, Nelly Fazio, and James Mickens, Amigo: Secure Group Mesh Messaging in Realistic Protest Settings. Proceedings of the 2025 on ACM SIGSAC Conference on Computer and Communications Security (ACM CCS). 2025. 
*Co-first authors

J. Mickens, Sarah Radway, and Ravi Netravali, “Guillotine: Hypervisors for Isolating Malicious AIs”. HotOS, Banff, Alberta, Canada, 2025.

Radway, Sarah, Katherine Quintanilla, Cordelia Ludden, and Daniel Votipka. "An Investigation of US Universities' Implementation of FERPA Student Directory Policies and Student Privacy Preferences." Proceedings of the 2024 CHI Conference on Human Factors in Computing Systems. 2024.

Christ, Miranda*, Sarah Radway*, and Steven M. Bellovin. “ Differential Privacy and Swapping: Examining De-Identification’s Impact on Minority Representation and Privacy Preservation in the US Census .”  2022 IEEE Symposium on Security and Privacy (SP) . IEEE Computer Society, 2022. 
*Co-first authors

Blessing, Jenny*, Drean, J.*, & Radway, S.* Survey and analysis of U.S. policies to address ransomware  MIT Science Policy Review 3 , 38-46 (2022). https://doi.org/10.38105/spr.iyuyqypkzm. 
*Co-first authors

Radway, Sarah. “ Predictive Privacy: Modeling Privacy Harms .” Diss. Columbia University, 2021.

“Amigo: Secure Group Mesh Messaging in Realistic Protest Settings.” April 2025. Tufts University.

“Policy Red Teaming.” February 2025. University of Iowa.

“Policy Red Teaming.” August 2024. Berkman Klein Center Lunch and Learn.

“An Investigation of US Universities’ Implementation of FERPA Student Directory Policies and Student Privacy Preferences.” April 2024. Annual Boston Usable Security Day. Boston, MA.

“Amigo: Anonymous Mesh Messaging In Groups”. April 2024. CCNY Inaugural Cybersecurity Series. New York, NY.

“The Politics of Privacy In The U.S. Census.” Science In The News. November 2023. Cambridge, MA.

“Counting Kindergarteners: De-Identification’s Impact on Student Representation .” The National Academies CNSTAT 2020 Census Data Products Workshop. June 2022. Washington, DC.

“Comparative Analysis of Differential Privacy and Swapping Methods In The Context of The U.S. Census “. Federal Committee on Statistical Methodology 2021. November 2021. Virtual.

2023:

• 2023 School of Engineering Outstanding Graduate Contributor To Engineering Education Award
• Harvard Graduate School of Arts and Sciences Prize Fellowship

2022:

• NSF 2022 Graduate Research Fellow
• 2022-2023 Kirk and Janelle Loevner Endowed Fellowship
• 1st Place, 15-Minute Talk, Tufts Student Research Competition 2022
• Computing Research Association, Grad Cohort Workshop for Women ; Selected As Funded Attendee
• Heidelberg Laureate Forum; Selected As Funded Student Attendee

2021:

• Columbia University Computer Science Department Award: Theodore R. Bashkow Award
• NASA SUITS Finalist: xEMU Augmented Reality Spacesuit Development Challenge

2020:

• Columbia University Scholars Program – 2020 Research Summer Funding Recipient
• Columbia University Leadership and Excellence Award: Inclusion & Advocacy

Academic Service:

Harvard Berkman Klein Center’s Policy Red Teaming Working Group (Fall 2024, Spring 2025) Created and led BKC’s working group exploring how to meaningfully migrate the concept of red teaming from the cybersecurity space to the policy space.

MIT Science Policy Review: Executive Editor (2022-23) Responsible for oversight of the selection, development, and review of security & privacy articles submitted to the MIT Science Policy Review Volume IV.

Workshop on Inclusive Privacy and Security (WIPS) 2023– Program Committee Member

Symposium on Usable Privacy and Security (SOUPS) 2023, 2024 – Poster Program Committee

Teaching Programs:

CS297R Masters Student Capstone Course TA (Spring 2025) TAed the Harvard Masters Capstone course, advising ten students throughout their work on three capstone research projects.

Emerging Scholars Program: Student Coordinator (2021-23) Led a discussion based course focused on encouraging students to pursue computer science beyond the introductory level.

SUITS Research Team: Group Leader (2019-21) Established and led a team of underclassmen students selected as finalists for the NASA SUITS Challenge, in which we created an augmented reality (AR) UI for the new spacesuit, reporting to NASA and Microsoft.

[10/20/2025]

IEEE Spectrum just released a blogpost about our recent paper, Amigo, titled “Why Mesh Networks Break When Big Crowds Gather“! Super exciting stuff!

[10/17/2025]

Had so much fun presenting our paper, Amigo, at ACM CCS 2025 this week! This work (co-first authored by me and David Inyangson!) presents a communication system for protesters seeking to communicate in groupchats during internet shutdowns. With contributions across the full stack, we are the first to explore the impact of mobility models and lower layer protocol effects in the protest mesh setting.

… and I had just as much fun exploring Taipei with my collaborators/friends 🙂

[9/10/2025]

Presented our current project, Permissions Explorer, with my collaborator, Zoe, today at the Berkman Klein Center Fall Launch Event! Super excited to share what we are working on more publicly soon 🙂