- a secret word or phrase used for identification, as by a soldier wishing to pass a guard
- a sequence of characters that must be entered in order to gain access to electronically locked or protected computer or security systems, files, etc.
- any means of gaining entrance, admission, etc.
(third-person singular simple present passwords, present participle passwording, simple past and past participle passworded)
- (computing) To protect with a password.
password - Computer 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.
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.
A secret word or code used to serve as a security measure against unauthorized access to data. It may be used to log onto a computer, network or website or to activate newly installed software in the computer. However, without additional measures such as biometric identification, the computer can only verify the legitimacy of the password, not the legitimacy of the user (see biometrics). Password, Passphrase, Passcode and Key The terms "passphrase," "passcode" and "key" are synonyms for password. They all provide an identity mechanism; however, passwords, passphrases and passcodes tend to be user generated. A key usually refers to a code generated by an encryption system or by the vendor of the software the user purchased. See password manager, public key cryptography and NCSC.