After coping a project, can the contributors in the original project view the copied project board? If yes how can I hide it

[Becca_dag]

How to make a copied project private?

[lpb]

Welcome, @Becca_dag,

After duplicating a project, there’s no tie between the new and old copies.

To determine visibility of a project, hover the project’s Share button

If public to the team, as this project is, then members of that team can see it.

Regardless of the above, also members of this project can see it (too).

You can click the Share button to set whether a project is public or private to the team (Share tab), and choose edit or comment-only access (Members tab) there.

Larry