To build a positive environment for contributors and manage the community around your organization's projects, owners can block and unblock a user's access to organization repositories.
Blocking a user from your organization
Organization owners can block a user to remove the user's ability to collaborate on the organization's repositories.
Viewing users who are blocked from your organization
You can view a list of all users whom you or other owners have blocked from your organization.
Unblocking a user from your organization
Organization owners can unblock a user who's previously been blocked, restoring their access to the organization's repositories.
