The firewall
Example: The firewall blocks unauthorized access
Definition
"The firewall" is a security system that controls incoming and outgoing network traffic based on predetermined security rules, designed to block unauthorized access while permitting authorized communication within computer networks.
Etymology
The term "the firewall" originally comes from construction, where a firewall is a barrier designed to prevent the spread of fire. In computing, it was adopted metaphorically to describe a protective barrier that prevents harmful data from spreading into secure networks.
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"The firewall" appears in the Vocaplus list "English - IT Users - (A1-C2) - set 1", containing 106 commonly used words.
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