The present invention relates to a method and system for providing access to a device for a user. The method comprises the steps of receiving an access attempt from the user to the device, identifying the user attempting to access the device, retrieving personal information from a database related to the user, the personal information comprising personal traits of the user, selecting a visual challenge configured based on the personal information, issuing the visual challenge to the user, receiving visual input corresponding to an eye-movement of the user relating to the visual challenge, determining whether the user passed the visual challenge based on the received visual input corresponding to an eye movement of the user, and allowing access to the device for the user if the user passes the visual challenge, or denying access to the device for the user if the user fails the visual challenge.