An electronic device of the present disclosure includes: a communicator configured to communicate with an external device; and a controller configured to perform control for connecting with a user terminal of transmitting a first communication signal having a first signal strength when the first communication signal is received through the communicator, receiving information about connection with a communication relay from the connected user terminal, and connecting with the communication relay of transmitting a second communication signal having a second signal strength lower than the first signal strength through the communicator based on the received connection information. Thus, an IoT device can have safe access to a wireless AP through a user terminal.