US Patent 11055395 Step-up authentication

A method for identifying and/or authenticating a user on a device, the method comprising: requesting identification or authentication of the user for a first task; determining a first threshold in dependence on the first task; selecting a first authentication process from a plurality of authentication processes; determining a confidence score in dependence on a performance of the selected first authentication process, wherein the confidence score indicates a level of confidence in the user's identity; determining whether the confidence score is above or below the first threshold; and if the confidence score is below the first threshold, selecting a second authentication process from the plurality of authentication processes, otherwise identifying or authenticating the user for the first task.