In BIM 360 Team, you can create 3 different types of projects: Open, Closed, and Secret. They have different levels of visibility on the hub, content privacy, and membership restrictions. When you create a project, a Closed project is created by default. Project Contributor access is also enabled by default, if the hub is PC-enabled.
Open Projects are visible and accessible only to Team Members. Team Members can join or be invited to join an Open project. The Viewer Role is not available for Open projects.
Secret projects are visible and accessible only to project members. Project membership is by invitation only. All three project roles are available within a Secret project.
Learn more about creating projects and managing projects .