ELECTRONIC DEVICE AND METHOD FOR REGISTERING NEW USER THROUGH AUTHENTICATION BY REGISTERED USER

An electronic device and method are disclosed herein. The electronic device includes a speaker, microphone, processor and memory storing instructions, which implement the method, including: determining whether registration of a first user is required based on a first voice signal obtained through a microphone of the electronic device, when registration of the first user is required, requesting authentication of the first user by a second user preregistered at the electronic device, and when information authenticating the first user by the second user is received, registering the first user based on the received information.