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password - technical definition

A security mechanism in the form of an authentication tool used to identify a user of a device, program, or network and to identify the user's level of privilege on a site, host, application, screen, and field level.A password usually comprises a string of characters that the user enters through a keypad, ideally a reasonably lengthy combination of letters, numbers, punctuation marks, and other characters that an intruder cannot easily guess. Passwords should be changed frequently.A password usually is associated with a user ID, or username, and both must be entered during the logon process. See also authentication and security.

See password in Webster''s New World Hacker Dictionary

A unique character string that a user types to access a computer, network, or an application such as a database or a Web-based service. Essentially, passwords are identification codes restricting access to computers, networks, and sensitive files.

The system compares the typed user identification and password against a list of authorized users and passwords stored on the system. If the entered user identification (that is, id) and password are valid, the system lets the user access at the security level preapproved for him or her.

See password in Computer

A secret word or code used to serve as a security measure against unauthorized access to data. It is normally managed by the operating system or DBMS. However, the computer can only verify the legitimacy of the password, not the legitimacy of the user. See NCSC.

Password Tips from the NCSC

CHANGE PASSWORD FREQUENTLY - The longer you use a password, the higher the risk.

USE GOOD PASSWORDS - Don't use persons, places or things that can be identified with you.

DON'T DISCLOSE YOUR PASSWORD - Your password is as valuable as the information it protects.

INSPECT YOUR DATA - If you suspect someone has tampered with your files, report it immediately.

NEVER LEAVE AN ACTIVE TERMINAL UNATTENDED - Always log out or lock your terminal before leaving it.

REPORT SUSPECTED COMPUTER ABUSE - Whether directed against you or not, abuse or misuse of your computer resources only hinders the timely completion of your tasks.

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password - technical definition

Password Tips from the NCSC

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