OpenSSH SSH client (remote login program)

-X      Enables X11 forwarding.  This can also be specified on a per-host basis in a configuration file.

        X11 forwarding should be enabled with caution.  Users with the ability to bypass file permissions
        on the remote host (for the user's X authorization database) can access the local X11 display
        through the forwarded connection.  An attacker may then be able to perform activities such as
        keystroke monitoring.

        For this reason, X11 forwarding is subjected to X11 SECURITY extension restrictions by default.
        Please refer to the ssh -Y option and the ForwardX11Trusted directive in ssh_config(5) for more
        information.