Abstract: Techniques for generating dynamic challenge questions for use in an authentication process are provided herein. An example computer-implemented method can include outputting a first prompt to a user via a user device interface, wherein the first prompt comprises a first set of information-gathering questions; generating dynamic challenge questions for use in an authentication process, wherein the dynamic challenge questions are generated based on user responses to the first set of information-gathering questions; generating a second prompt in connection with an authentication request, wherein the second prompt is based at least in part on at least one of the dynamic challenge questions; processing a user response to the at least one dynamic challenge question, wherein said processing comprises determining a likelihood that the user response matches an automatically estimated response; and resolving the authentication request based on the processing.

Abstract: A technique controls access to a resource. The technique includes deriving, by processing circuitry, a password based on a phrase/thought provided by a user. The technique further includes confirming with the user that the password is to control access to the resource. The technique further includes, after confirming with the user that the password is to control access to the resource, imposing a requirement that the user provide the password before obtaining access to the resource. Such a password may be formed by concatenating multiple words (e.g., four words) that may be unrelated to each other. Such a password may be relatively strong since the resulting concatenation would not be found in any dictionary, and since it would be an extremely difficult and time consuming endeavor to predict such a password by attempting to combine words from a dictionary to form the concatenations.