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07/12/2023
52 Weeks Later: Attitudes Towards COVID-19 Apps for Different Purposes Over Time
The COVID-19 pandemic has prompted countries around the world to introdu...
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12/25/2022
Talking to the Overlooked: A Nationwide Telephone Survey with Four Groups Under-represented in Privacy and Security Studies
Online surveys - a primary research tool in the field of usable security...
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12/20/2022
A World Full of Privacy and Security (Mis)conceptions? Findings of a Representative Survey in 12 Countries
Misconceptions about digital security and privacy topics in the general ...
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12/14/2022
"I Knew It Was Me": Understanding Users' Interaction with Login Notifications
Login notifications are intended to inform users about recent sign-ins a...
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06/22/2021
Proof-of-Vax: Studying User Preferences and Perception of Covid Vaccination Certificates
Digital tools play an important role in fighting the current global COVI...
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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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01/26/2021
What's in Score for Website Users: A Data-driven Long-term Study on Risk-based Authentication Characteristics
Risk-based authentication (RBA) aims to strengthen password-based authen...
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10/27/2020
Apps Against the Spread: Privacy Implications and User Acceptance of COVID-19-Related Smartphone Apps on Three Continents
The COVID-19 pandemic has fueled the development of smartphone applicati...
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10/01/2020
More Than Just Good Passwords? A Study on Usability and Security Perceptions of Risk-based Authentication
Risk-based Authentication (RBA) is an adaptive security measure to stren...
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08/18/2020
Evaluation of Risk-based Re-Authentication Methods
Risk-based Authentication (RBA) is an adaptive security measure that imp...
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03/17/2020
Is This Really You? An Empirical Study on Risk-Based Authentication Applied in the Wild
Risk-based authentication (RBA) is an adaptive security measure to stren...
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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