TFS - permission setting for a specific project as part of a team project

Question

we are using TFS-2010. We have one project team within the project. and we have 15 projects under the command of the project. Now another team (not a company employee) is about to join from a remote location. and they will work on one specific project.
Problem:
so I would like to do this in order to set the resolution so that they only see this particular project, project 14 should be hidden from them (cannot even check or get the source in any way).

The TFS server is currently running on premises. and we refer to it as a domain.
Thanks for any help.

Answer 1

You can select any folder in the source code explorer, right-click the properties, tab "Security" and restrict or grant permissions to each specific folder by role.

Thus, you can create a new TFS security role, call it consultants (from Team → Team Project Settings → Group Membership → New ...). Grant him access to the appropriate folders, then assign him all your domain accounts.

Answer 2

What we do at work when consultants need access to our original control is to create a new branch with the code that they will work on and grant them permissions for only one branch. Your group can also work from this branch and, if necessary, join your main branch again.