1. A method of limiting access to a program, computer, or a network by requiring you to enter a password Some programs allow you to password-protect your files so they can't be read by others, but be sure to keep a record of the password. Many users have lost work permanently because they forgot the password and had no means to retrieve it. (If a method for retrieving a password were included in software programs, a clever cracker would quickly discover it, and your data wouldn't be secure) From QUECID