[syslog-ng] Usertty sending messages to all user and without login also

Hello everybuddy, I am using syslog-ng and used usertty in destination. I am using a user 'test' as destination. But other users can also see the message on their console e.g root and other users. Please help as this is creating a problem and NG not working as desired. OS: Solaris 10 Anurag