Patent attributes
A device may receive an authentication request generated based on a request to access a service. The authentication request may include a user identifier. The device may identify a mobile device associated with the user identifier. The device may authenticate the mobile device, and may generate an access notification based on authenticating the mobile device. The access notification may include information relating to the request to access the service. The device may provide the access notification to the mobile device, and may receive an access response from the mobile device. The access response may indicate whether to permit access to the service. The device may cause access to the service to be permitted when the access response indicates to permit access to the service, or may cause access to the service to be denied when the access response indicates to deny access to the service.