MR60 Wifi Publishing multiple Wifi names and different Mac Addresses

I setup a MR60 Nighthawk router with 2.4 and 5 with a Guest network.   I can see the 2 boxes and mac addresses in my network analyzer but also seeing several other Mac addresses publishing with the same Wifi Name.   This is the output of all the local BSID and TalegaGoGo and DogRacing are the ones I am concerned about.  They are publishing Mac addresses that have nothing to do with the hardware.    We have had serious WiFI spoofing and theft to the point of machines vandalized and I am concerned this is happening again.  Thank you