Last week we announced a new feature called Personal Vault that will be available soon for OneDrive consumer accounts. See this blog post for more details.
We have no plans to bring Personal Vault to our Commercial customers at this time, but continue to make investments in advanced security features that are unique to the Commercial service.first khan commented
Hello Microsoft (or Douglas Pearce), looks like you have been thinking since March 2017, for 2+ years, to add password to shared files in OneDrive. All other cloud storage sites provide this capability. When are you implementing this or do we need to switch to who provides that capability?