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Password Fallback Authentication › Resource resorted to when users forget their passwords ...
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Usable Security – Password Fallback Authentication COMP6620 – User Interface Design Shaneé Dawkins Robert Voitle
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Transcript of Password Fallback Authentication › Resource resorted to when users forget their passwords ...
Usable Security – Password Fallback
AuthenticationCOMP6620 – User Interface Design
Shaneé DawkinsRobert Voitle
Project Background
Password Fallback Authentication› Resource resorted to when users forget
their passwords Existing Tools
› CAPTCHA› Pre-defined questions› User-defined questions› Preference based authentication
Project Overview
Preference-based Method› User chosen images
How it works› User selects 8 preferences during account
set up (likes & dislikes)› User is presented with preferences if
password forgotten› User must make selections› No obscure question answers to memorize
Account Set Up
Forgot Password
Evaluation Usability Study
› Memorability (2 phase study)› Learnability (ease of use)› Safety (security)› Efficiency (time to select preferences)› Effectiveness (completion)› Utility (real world application)
Heuristics› Color blind› Security?
