USB Tethering asking for Network Security key

Novice II

I have an A13 phone.  I have connected the A13 to my laptop.  My laptop sees the A13 phone.  My problem is that it is prompting me for a "network security key".  I have no idea what that would be for the A13 phone.  I have wifi in the house and I can connect to the wifi just fine.  I am selecting the Mobile Hotspot option on the laptop just fine.


Help!  What do I use for the "network security key" when I am prompted to connect to the A13 phone?