The system console should never be left unattended. To protect the integrity of your database, always have the operator sign off the console before leaving, by entering:
#CP SET RUN ON
#CP DISCONN
This command enables the operator to sign off without stopping the application server. To restrict access to the DB2 Server for VM operator console, only give the password for the application server to people who need to use it, and who can be trusted not to misuse it or to give it to other.