Help Surface Book 2 Transmitting a Hotspot

I have a surface book 2 running Windows 10 Pro, Version 1909, OS Build 18363.720.  It's transmitting a network hotspot called Direct-JJJerrys-surfacems3x.  I can see the network from a list of available networks, Jerry is my name, and when I shut down my SB2, the network disappears.  In Windows Settings > Network & Internet > Mobile Hotspot - the "Share my Internet connection with other devices" is Off.  Also, the Network name is different, and the network password does not work on the Direct-JJJerrys-surfacems3x network.  Why is my SB2 transmitting a network and how do I turn it off?  Should I be concerned about my SB2's security?

Thanks in advance.

Edit - I can see the network from my phone but can't join it because it's locked and I don't have the password.  

Edited by jjl2008, 21 March 2020 - 12:37 PM.

This could be your ISP. Some ISPs over-provision their retail services and use the extra to provide a public 'hot spot' service. BT in the UK do this, they have a service called BTFon which is available to anyone with a BT account and who has acquired a BTFon access code. This service is entirely seperate from your own wifi but does show up in the list of routers in the area. You would need to check this with your ISP.

Alterntively you may be suffering malware. Run a scan with Win Defender and, if you have it, with Malwarebytes. If these show up anything they cannot fix themselves start a topic in the 'Virus and malware removal' section on BC -

https://www.bleepingcomputer.com/forums/f/22/virus-trojan-spyware-and-malware-removal-help/

If you do start a topic there read the notes pinned at the head of the section before you start.

Chris Cosgrove