Definition: The word proxy, as it relates to information security, means concealing the identity and maintaining the anonymity of an Internet user, computer, server or network.  A proxy is a substitute.  A user first accesses a node on a network and contacts a server that has the capability to provide the desired level of functionality (e.g. surfing on the web) for users. The proxy is a “server-in-between” and it would conceal the identity of your IP.  Your computer that made the original request remains.

Its Relevance: You or your organization could avoid concealing the address of your computer(s).  Doing so might enhance the confidentiality, integrity and availability of information resources you want to protect. 

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