A system for performing authorization of a user in an augmented reality environment comprises an augmented reality user device, an automatic teller machine, and an authentication server. The automatic teller machine has a keypad with unmarked buttons. The augmented reality user device includes a display configured to overlay virtual objects onto a field of view of a user. The augmented reality user device receives a virtual keypad overlay, which assigns values to the unmarked buttons of the keypad. Using the overlay, the augmented reality user device displays the assigned values on the buttons of the keypad. The automatic teller machine detects an input sequence entered on the keypad and sends the input sequence to the authentication server. The authentication server determines an authentication code by combining the input sequence with the virtual keypad overlay, and compares the determined authentication code with an authentication code stored in a database.