Two internet service at one location.

Good day,  

Back again.  

Refresh on what we are dealing with,   Business, Bulk Account,  Multiple Addresses link to one Xfinity ID / log in.  

We have a resident who would like to work from home and his employer is requiring that he has a separate / secure internet service separate from his home service.   

What will be required to get this set up for him??  I'm thinking a second modem with it own network name and password, but not certain if that is the best way to go with the way our service is set up.  

Thank you.