1. A method, comprising: obtaining at least one behavioral fingerprint that is associated with at least one authorized user, the at least one behavioral fingerprint including at least one or more indicators of utilization of two or more user devices by the at least one authorized user; obtaining one or more indicators of one or more predicted acts of the at least one authorized user with regard to at least one of the two or more user devices, the one or more indicators of one or more predicted acts derived at least partly from at least one statistical analysis of one or more observed acts associated with the at least one authorized user; and performing at least one authentication-related operation based at least partially on the at least one behavioral fingerprint and the one or more indications of one or more predicted acts, wherein at least one of the obtaining at least one behavioral fingerprint or the performing at least one authentication-related operation is at least partially implemented using one or more processing devices.