Current Webex integration with SharePoint has four options for permissions when sharing files.
users in your organization
users in this space
users with existing access.
This "anyone" option is very dangerous. A user could accidentally share out sensitive information with the world since this integration changes the permissions in SharePoint.
With Webex offering end-to-end encryption and at rest, I would expect them to give us the ability to lock down content sharing within the Webex app from SharePoint, OneDrive, Box, Dropbox, or any other content-sharing SaaS they will integrate with.
I'm asking for the ability not to allow users to select anyone in any Team space. Currently, there is no option to limit your employee's sharing ability.