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Usable security has unique usability challenges because the need for security often means that standard humancomputer-interaction approaches cannot be directly applied. An importa...
Sonia Chiasson, Alain Forget, Robert Biddle, Paul ...
We present and evaluate various methods for purely automated attacks against click-based graphical passwords. Our purely automated methods combine click-order heuristics with focu...
Amirali Salehi-Abari, Julie Thorpe, Paul C. van Oo...
Click-based graphical passwords have been proposed as alternatives to text-based passwords, despite being potentially vulnerable to shoulder-surfing, where an attacker can learn p...
Click-based graphical passwords have attractive usability properties, such as cueing and good memorability. However, image size and number of click-points in each password signifi...