Other security tips

• Log out before leaving a terminal.

• Use the lock(C) utility when you leave your terminal, even for a short time. The lock command requests a password at the time of use, and then locks the terminal until the password is re-entered.

  Note that lock is ineffective if you are using a shell which supports job control (such as the C shell or the Korn shell), the shl layers system, any pseudo-tty system that permits you to switch between virtual terminals, or an X-windows terminal. If any of these conditions apply, you should log out instead.

• Keep disks or tapes containing confidential data (program source, database backups) under lock and key.

• If you notice strange files in your directories, or find other evidence that your account has been tampered with, tell your system administrator.