Provided is a method for operating an authentication server for authenticating a user who is communicating with an enterprise via a network. The method include receiving, via the network, a first authenticator including first information from a low energy wireless device received via a user device wirelessly, and storing the first authenticator. When the authentication service later receives, from the enterprise, a request to authenticate the user, the authentication server transmits an authentication request to the user device via the network requesting that the user read information from the low energy wireless device using the user device. The information received from the low energy wireless device in response to the authentication request is then used authenticate the user by comparing the information received from the low energy wireless device due to the authentication request with the stored first authenticator.