A method for preventing password theft through unauthorized keylogging includes detecting, from a host application, a request for a password input by a user of an input keyboard device; activating a randomly generated keyboard map uniquely associated with the host application such that a first set of keystroke values inputted by the user results in a second, converted set of keystroke values transmitted to the host application, in accordance with the randomly generated keyboard map uniquely associated therewith; and upon completion of a password entry process by the user, deactivating the randomly generated keyboard map such that subsequent keystroke values inputted by the user are no longer converted to the values according to the keyboard map.