That’s what a shared view is – if you filter a table in a view so that it only shows records where {Client} = “Acme, Inc.”, no other client’s records will show in that view. If you use the share menu to create a shared view link, and send that link to “Acme, Inc.”, they will have access to view all the records in that view, and only the records in that view. They cannot “unfilter” it to show your other client’s records. In fact, they can only further filter it to filter down their own records by some other criteria.
