Can CloudSOC (CASB) publish a list of SaaS services to be blocked in a firewall or proxy?
CloudSOC (CASB) Audit can report discovered IP's and URL of domains of interest (DOI) used by an App.
This data can be copied to the clipboard from the "Find and Compare Services" feature in Audit.
The DOI can then be imported and blocked at the firewall or proxy.
A CloudSOC (CASB) Access Enforcement Policy can block access to groups of people, but blocking at the firewall or proxy may be more appropriate for an entire site.