[gentleteblor]

Are these passwords for individual use (in SaaS apps for example) or are they passwords to enterprise assets (databases, document stores etc).

I've used Azure Key Vault quite a bit and it might be a good solution to the latter scenario.

[bobosha]

Those seem MS specific, something lightweight, dropbox-ish/slack-ish easy-to-use app for enterprise security sharing.

[gentleteblor]

Key Vault is an MS service for sure, but you can use it for anything as it has rest api.

It's not as friendly as drobox/slack but it's far more secure.