_SetUPaMirrorFSecureNote
An approved mirror farm will have access to all projects and repositories in the primary Bitbucket Data Center instance. Smart mirroring has been designed to require secure communication throughout, and to restrict all functionality to the appropriate privilege level (such as system administrator) to ensure the security of all your sensitive information. It is still your responsibility to set up mirrors with the same stringent security practices as your primary Bitbucket Data Center instance. See the FAQ How secure is Smart Mirroring? for more information.
To approve a mirror farm request:
In your primary Bitbucket Data Center instance, go to Admin > Mirrors. The authorization request will appear.
Click Authorize to approve the mirror request and start syncing the projects and repositories of the primary Bitbucket Data Center Instance.