A secure file share is never an enclave as the endpoints who access the file share are in scope, but when segmented off the secure file share can be part of an enclave. For example you can restrict managed devices accessing the secure file share with VLANs or create a DMZ. For companies who only handle document based CUI and need to flow these documents down to subcontractors you may be able to create an enclave with secure file sharing. Many companies with an Enterprise or enclave scope add secure file sharing as a way to flowdown CUI to subcontractors
- Box.com
- Cocoon Data
- Egnyte
- Exostar