Fraud over Internet ProtocolFoIP, short for Fraud over Internet Protocol, is the act of taking advantage of VoIP security vulnerabilities to steal network capacity. The term was used after a well-known criminal case where two men tapped into corporate and service provider networks and routed millions of minutes in calls illegally. One of the first uses of the term FoIP as an acronym for Fraud over Internet Protocol appeared in an article on Datamation. (Datamation is owned by the same parent company as Webopedia.)
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