OConn is built using OAuth 2.0. This draft standard is currently in development and appears close to being finalized. A user's profile provider is their hub for interacting with all other profiles and OConn-enabled web sites. It is their profile data repository and means of managing privacy settings. As such, when a user connects with another person's or organization's profile, or when they sign up with a new OConn website, they trust their profile provider to limit access to their data. OAuth 2.0 ensures that the user's profile provider is central in the flow (and experience) of granting access to that data.