The main aim of the work on the subject is to reduce password guessing attack in a computer security system by creating graphical passwords for which pixels are chosen from images. In a computer security system, human-computer interaction depends on proper authentication of the system. For the attackers, memorable passwords are easy to guess. Hence, researchers of modern days have opted for an alternative method wherein graphical pictures are used as passwords. Human brain recollects picture better than textual character. Hence, graphical passwords are created using images or representation of images.

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Authentication Persuasive Cued Click Point Graphical Password Images Guessing Attack User Security.