Which one of the following user identification and authentication techniques is least secure
User IDs and Passwords are user identification and authentication techniques is least secure.
User authentication is a process that allows a device to verify the identify of someone who connects to a network resource. There are many technologies currently available to a network administrator to authenticate users.
Authentication is the process of determining whether someone or something is, in fact, who or what it declares itself to be. Authentication technology provides access control for systems by checking to see if a user's credentials match the credentials in a database of authorized users or in a data authentication server.
Users are usually identified with a user ID, and authentication is accomplished when the user provides a credential.
Example:- a password, that matches with that user ID. Most users are most familiar with using a password, which, as a piece of information that should be known only to the user, is called a knowledge authentication factor.
A password is a string of characters used to verify the identity of a user during the authentication process.