Blacklist

A blacklist is a list or register of people who, for one reason or another, are being denied a particular privilege, service, or mobility. As a verb, blacklist can mean to deny someone work in a particular field, or to ostracize them from a certain social circle.

Computing

In computing, a blacklist is an access control mechanism, that stands for allow everybody, except members of the blacklist. The opposite, whitelist, means allow nobody, except members of the white list. As a sort of middle ground, a greylist serves as a temporary blacklist, eg. to block poorly-configured mail clients that may be used to send undesirable mail.

Related Topics:
Computing - Access control - Whitelist - Greylist

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If an organization keeps a blacklist of software, titles on the list will be banned and everything else allowed. A school might blacklist KaZaA and ICQ; other Internet services would still be allowed. If a spam mail filter keeps a blacklist, mail from the listed addresses will be filtered away.

Related Topics:
Spam - Mail filter

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Copy prevention schemes include Software Blacklisting.

Related Topics:
Copy prevention - Software Blacklisting

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"Blacklist" is also the title of a mystery novel written by Sara Paretsky

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