Definition of Automatic User Authentication
When accessing an account in a system or website, a user can authenticate himself by entering his user name and password. Automatic or automated user authentication removes the need for users to manually authenticate themselves.
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Function
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Automatic user authentication allows a system that requires authentication to bypass a user and rely on automated methods of authentication. The system interacts directly with a Web browser or a network resource and, if it receives valid authentication information, grants access to the user. Otherwise, it requests authentication from the user.
Types
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A user can set his Web browser to cache user credentials upon his first visit to a page. His browser sends those credentials upon each subsequent visit to automatically authenticate himself. On a network, a single member of an organization can authenticate a group of IP addresses, automatically authorizing all other users, which provides each member access to system resources uniformly without needing each individual to authenticate.
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Benefits
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Automatic user authentication serves to quicken the authentication process, enabling users to access system resources more quickly. This also eliminates the risk of lost or forgotten passwords as well as reduces the risk of hackers stealing keyboard-entered passwords.
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