Broadcast on AIX

hello

how to disable brodcast from AIX 5.3 ?
user get on workstation massage from root
thx

Without seeing the message it will be difficult to answer...

root can broadcast to any user regardless of their terminal permissions.

Hmm,
As vbe asked, without seeing the message it will be difficult to answer, if the broadcast is happening on all sessions of that server, my two cents for wall . Also, check the crontab of root to see is there any entry to shoot that message.