Computer systems and methods are provided for authenticating a user seeking to conduct at least one interaction with a secured capability provided by a computer. The method includes accessing a first identifier corresponding to the secured capability and sending a second identifier to an electronic device being used by the user. The second identifier corresponds to the secured capability. The method further includes receiving a signal from the electronic device being used by the user. The method further includes using a processor to evaluate, based at least on the signal and one or both of the first identifier and the second identifier, whether the user is authorized to conduct the at least one interaction with the secured capability.