Definition: A Spoof, as it relates to information security, relates to a person or system’s identity being substituted with another. The word refers to any one of a number of specific attacks. IP packet headers, for example, can be altered to include the IP source address of the imposter. A cracker can insert a malicious email address. The same is true of web site URLs. A cracker can fool the target into thinking that he or she is a trusted or legitimate source. The attacks are so sophisticated that a counterfeit page can be made to look like the real thing.

Its Relevance: Organization’s must address a defense against this attack vector. This type of electronic forgery can result in serious losses for the organization. Users must be educated as to the correct online security procedures to follow.

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