Abstract: A method for computer security. A gallery comprising a first identity of a first human person is maintained, the first identity associated with a plurality of tags, with first properties, useful for identifying the first human person. A first Internet search for facial images of the first human person is performed using the plurality of tags. A first facial image is selected from the results of this search. A second Internet search is performed for facial images of other human persons based on second properties that are generated by modifying the first properties of the plurality of tags. A plurality of additional facial images of the other human persons retrieved by the second Internet search is selected. A palette of randomized facial images including the first facial image together with the plurality of additional facial images is presented. Access is denied unless the correct facial image is selected.

Abstract: A method for computer security. A gallery comprising a first identity of a first human person is maintained, the first identity associated with a plurality of tags, with first properties, useful for identifying the first human person. A first Internet search for facial images of the first human person is performed using the plurality of tags. A first facial image is selected from the results of this search. A second Internet search is performed for facial images of other human persons based on second properties that are generated by modifying the first properties of the plurality of tags. A plurality of additional facial images of the other human persons retrieved by the second Internet search is selected. A palette of randomized facial images including the first facial image together with the plurality of additional facial images is presented. Access is denied unless the correct facial image is selected.

Abstract: A method for computer security. A gallery comprising a first identity of a first human person is maintained, the first identity associated with a plurality of tags, with first properties, useful for identifying the first human person. A first Internet search for facial images of the first human person is performed using the plurality of tags. A first facial image is selected from the results of this search. A second Internet search is performed for facial images of other human persons based on second properties that are generated by modifying the first properties of the plurality of tags. A plurality of additional facial images of the other human persons retrieved by the second Internet search is selected. A palette of randomized facial images including the first facial image together with the plurality of additional facial images is presented. Access is denied unless the correct facial image is selected.

Abstract: A method for computer security. A gallery comprising a first identity of a first human person is maintained, the first identity associated with a plurality of tags, with first properties, useful for identifying the first human person. A first Internet search for facial images of the first human person is performed using the plurality of tags. A first facial image is selected from the results of this search. A second Internet search is performed for facial images of other human persons based on second properties that are generated by modifying the first properties of the plurality of tags. A plurality of additional facial images of the other human persons retrieved by the second Internet search is selected. A palette of randomized facial images including the first facial image together with the plurality of additional facial images is presented. Access is denied unless the correct facial image is selected.