Add the ability to apply a Hub restriction (e.g., prevent content from being added to a Hub) in Shield. Users would be able to apply the Hub restriction within an access policy based on a classification label or content type. This would prevent unintentional internal and external access to content in a Hub and reduce confusion for external users that may be blocked from accessing content in a Hub due to other Shield external collaboration restrictions. This would be especially helpful for highly regulated industries like public sector agencies, government contractors, and financial services.