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06/29/2023
Honesty is the Best Policy: On the Accuracy of Apple Privacy Labels Compared to Apps' Privacy Policies
Apple introduced privacy labels in Dec. 2020 as a way for developers to ...
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02/24/2023
Educators' Perspectives of Using (or Not Using) Online Exam Proctoring
The onset of the COVID-19 pandemic changed the landscape of education an...
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06/06/2022
Longitudinal Analysis of Privacy Labels in the Apple App Store
In December of 2020, Apple started to require app developers to annotate...
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11/05/2021
Security and Privacy Perceptions of Third-Party Application Access for Google Accounts (Extended Version)
Online services like Google provide a variety of application programming...
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06/16/2021
"I have no idea what they're trying to accomplish:" Enthusiastic and Casual Signal Users' Understanding of Signal PINs
We conducted an online study with n = 235 Signal users on their understa...
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06/10/2021
Examining the Examiners: Students' Privacy and Security Perceptions of Online Proctoring Services
In response to the Covid-19 pandemic, educational institutions quickly t...
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05/30/2021
Strategies and Perceived Risks of Sending Sensitive Documents
People are frequently required to send documents, forms, or other materi...
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05/28/2021
Are Privacy Dashboards Good for End Users? Evaluating User Perceptions and Reactions to Google's My Activity (Extended Version)
Privacy dashboards and transparency tools help users review and manage t...
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12/14/2020
Holes in the Geofence: Privacy Vulnerabilities in "Smart" DNS Services
Smart DNS (SDNS) services advertise access to "geofenced" content (typic...
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10/05/2020
Why Older Adults (Don't) Use Password Managers
Password managers (PMs) are considered highly effective tools for increa...
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08/24/2020
Widely Reused and Shared, Infrequently Updated, and Sometimes Inherited: A Holistic View of PIN Authentication in Digital Lives and Beyond
Personal Identification Numbers (PINs) are widely used as an access cont...
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08/24/2020
Double Patterns: A Usable Solution to Increase the Security of Android Unlock Patterns
Android unlock patterns remain quite common. Our study, as well as other...
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06/05/2020
Knock, Knock. Who's There? On the Security of LG's Knock Codes
Knock Codes are a knowledge-based unlock authentication scheme used on L...
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03/10/2020
This PIN Can Be Easily Guessed: Analyzing the Security of Smartphone Unlock PINs
In this paper, we provide the first comprehensive study of user-chosen 4...
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03/10/2020
This PIN Can Be Easily Guessed
In this paper, we provide the first comprehensive study of user-chosen 4...
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11/26/2018
A Survey of Collection Methods and Cross-Data Set Comparison of Android Unlock Patterns
Android's graphical password unlock remains one of the most widely used ...
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09/23/2018
Comparing Video Based Shoulder Surfing with Live Simulation
We analyze the claims that video recreations of shoulder surfing attacks...
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05/31/2018
Classifying Eyes-Free Mobile Authentication Techniques
Mobile device users avoiding observational attacks and coping with situa...
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01/23/2018