Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for user authentication are disclosed. In one aspect, a method includes the actions of receiving a request to access a streaming service on an electronic device. The actions further include, in response to receiving the request to access the streaming service on the electronic device, determining, by the computing device, that a subscriber device is in a vicinity of the electronic device. The actions further include, based on determining that the subscriber device is in the vicinity of the electronic device, determining, by the computing device, a user identifier associated with the subscriber device. The actions further include determining that the user identifier is associated with a valid subscription to the streaming service. The actions further include providing data to access the streaming service.