Graphical passwords are an alternative to alphanumeric passwords in which users click on images to authenticate themselves rather than type alphanumeric strings. We have developed...
Susan Wiedenbeck, Jim Waters, Jean-Camille Birget,...
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...
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...
When users input their passwords in a public place, they may be at risk of attackers stealing their password. An attacker can capture a password by direct observation or by record...
Susan Wiedenbeck, Jim Waters, Leonardo Sobrado, Je...
Textual passwords are often the only mechanism used to authenticate users of a networked system. Unfortunately, many passwords are easily guessed or cracked. In an attempt to stre...