You just use a very strong PW and don't broadcast your SSID. Change the PW regularly. Your signal cannot be hidden but it's broadcast name can be.
Hi! I have an undesirable neighbor living next door,, no details. lol in the past I could see he had about 6 cameras running plus a mic. I bought 4 wireless cameras that use wifi and send alerts to my phone. is there ANY router, setting or product I can buy that can hide my signals. I rather not have him seeing what I've got running here.