Publications
SPOT Lab members are underlined.
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"I Wonder if These Warnings Are Accurate": Security and Privacy Advice in Nine Majority World Countries
Collins W. Munyendo, Veronica A. Rivera, Jackie Hu, Emmanuel Tweneboah, Amna Shahnawaz, Karen Sowon, Dilara Keküllüoğlu, Marcos Silva, Yue Deng, Mercy Omeiza, Gayatri Priyadarsini Kancherla, Maria Rosario Niniz Silva, Maryam Mustafa, Abhishek Bichhawat, Francisco Marmolejo-Cossio, Elissa M. Redmiles, Yixin Zou
IEEE Symposium on Security and Privacy (IEEE S&P '26) [Paper] -
Re-Examining the Examiners: Changes in Privacy and Security Perceptions of Exam Proctoring
Adryana Hutchinson, Elaine Ly, Collins W. Munyendo, Adam J. Aviv
ACM SIGCHI Conference on Human Factors in Computing Systems (CHI '26) [Paper] -
"No, I Can't Be a Security Personnel on Your Phone": Security and Privacy Threats From Sharing Infrastructure in Rural Ghana
Emmanuel Tweneboah, Collins W. Munyendo, Yixin Zou
34th USENIX Security Symposium (USENIX Security '25) [Paper]
🏆 Best Poster at the 2025 NYC Privacy Day -
Digital Security Perceptions and Practices Around the World: A WEIRD vs. Non-WEIRD Comparison
Franziska Herbert, Collins W. Munyendo, Jonas Hielscher, Steffen Becker, Yixin Zou
34th USENIX Security Symposium (USENIX Security '25) [Paper] -
Design and Evaluation of Privacy-Preserving Protocols for Agent-Facilitated Mobile Money Services in Kenya
Karen Sowon, Collins W. Munyendo, Lily Klucinec, Eunice Maingi, Gerald Suleh, Lorrie Faith Cranor, Giulia Fanti, Conrad Tucker, Assane Gueye
21st Symposium on Usable Privacy and Security (SOUPS '25) [Paper]
🏆 IAPP SOUPS Privacy Award -
"You Have to Ignore the Dangers": User Perceptions of the Security and Privacy Benefits of WhatsApp Mods
Collins W. Munyendo, Kentrell Owens, Faith Strong, Shaoqi Wang, Adam J. Aviv, Tadayoshi Kohno, Franziska Roesner
46th IEEE Symposium on Security and Privacy (IEEE S&P '25) [Paper] -
Reimagining Wearable-Based Digital Contact Tracing: Insights from Kenya and Côte d'Ivoire
Kavous Salehzadeh Niksirat, Collins W. Munyendo, Onicio Batista Leal Neto, Muswagha Katya, Cyrille Kouassi, Kevin Ochieng, Angoa Georgina, Bernard Olayo, Jean-Philippe Barras, Ciro Cattuto, Adam J. Aviv, Carmela Troncoso
ACM SIGCHI Conference on Human Factors in Computing Systems (CHI '25) [Paper] -
"I'm going to try her birthday": Investigating How Friends Guess Each Other's Smartphone Unlock PINs in the Lab
Elena Korkes, Collins W. Munyendo, Alvin Isaac, Victoria Hennemann, Adam J. Aviv
European Symposium on Usable Security (EuroUSEC '24) [Paper] -
Security, Privacy, and Data-sharing Trade-offs When Moving to the United States: Insights from a Qualitative Study
Mindy Tran, Collins W. Munyendo, Harshini Sri Ramulu, Rachel Gonzalez Rodriguez, Luisa Ball Schnell, Cora Sula, Lucy Simko, Yasemin Acar
45th IEEE Symposium on Security and Privacy (IEEE S&P '24) [Paper] -
It's Trying Too Hard To Look Real: Deepfake Moderation Mistakes and Identity-Based Bias
Jaron Mink, Miranda Wei, Collins W. Munyendo, Kurt Hugenberg, Tadayoshi Kohno, Elissa M. Redmiles, Gang Wang
ACM SIGCHI Conference on Human Factors in Computing Systems (CHI '24) [Paper] -
An Analysis of Password Managers' Password Checkup Tools
Adryana Hutchinson, Collins W. Munyendo, Peter Mayer, Adam J. Aviv
ACM SIGCHI Conference on Human Factors in Computing Systems Extended Abstracts (CHI EA '24) [Paper] -
"I just stopped using one and started using the other": Motivations, Techniques, and Challenges When Switching Password Managers
Collins W. Munyendo, Peter Mayer, Adam J. Aviv
30th ACM SIGSAC Conference on Computer and Communications Security (CCS '23) [Paper] -
"Someone Definitely Used 0000": Strategies, Performance, and User Perception of Novice Smartphone-Unlock PIN-Guessers
Daniel V. Bailey, Collins W. Munyendo, Hunter A. Dyer, Miles Grant, Philipp Markert, Adam J. Aviv
European Symposium on Usable Security (EuroUSEC '23) [Paper] -
"In Eighty Percent of the Cases, I Select the Password for Them": Security and Privacy Challenges, Advice, and Opportunities at Cybercafes in Kenya
Collins W. Munyendo, Yasemin Acar, Adam J. Aviv
44th IEEE Symposium on Security and Privacy (IEEE S&P '23) [Paper]
🏆 Distinguished Paper Award -
User Perceptions of Five-Word Passwords
Xiaoyuan Wu, Collins W. Munyendo, Eddie Cosic, Genevieve A. Flynn, Olivia Legault, Adam J. Aviv
38th Annual Computer Security Applications Conference (ACSAC '22) [Paper] -
"The Same PIN, Just Longer": On the (In)Security of Upgrading PINs from 4 to 6 digits
Collins W. Munyendo, Philipp Markert, Alexandra Nisenoff, Miles Grant, Elena Korkes, Blase Ur, Adam J. Aviv
31st USENIX Security Symposium (USENIX Security '22) [Paper] -
Why Users (Don't) Use Password Managers at a Large Educational Institution
Peter Mayer, Collins W. Munyendo, Michelle L. Mazurek, Adam J. Aviv
31st USENIX Security Symposium (USENIX Security '22) [Paper] -
"Desperate Times Call for Desperate Measures": User Concerns with Mobile Loan Apps in Kenya
Collins W. Munyendo, Yasemin Acar, Adam J. Aviv
43rd IEEE Symposium on Security and Privacy (IEEE S&P '22) [Paper] -
Strategies and Perceived Risks of Sending Sensitive Documents
Noel Warford, Collins W. Munyendo, Ashna Mediratta, Adam J. Aviv, Michelle L. Mazurek
30th USENIX Security Symposium (USENIX Security '21) [Paper] -
Using a Blocklist to Improve Security of User Selection of Android Patterns
Collins W. Munyendo, Miles Grant, Philipp Markert, Timothy J. Forman, Adam J. Aviv
17th Symposium on Usable Privacy and Security (SOUPS '21) [Paper]
