Good computer security includes the use of strong passwords for your network logon and the Administrator account on your computer. For a password to be strong and hard to break, it should be at least seven characters long and contain a combination of letters, numerals, and symbols (make sure to have at least one symbol character in the second through sixth positions). Your new password should be significantly different from prior passwords; it also should not contain your name, user name, or any common word or name.