How secure is VoIP?
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Phil Zimmerman, the inventor of Pretty Good Privacy (PGP), the application often credited with the introduction of cryptography to the masses, recently announced his intent to provide PGP-like software to ensure the privacy of voice over Internet Protocol (VoIP) communications. VoIP, or Internet telephony, enables the routing of voice conversations over IP networks (e.g. the Internet) and is currently offered for use through newer companies, such as Vonage and Lingo (and some not-so-new companies, like Verizon and Comcast). You'd be well within your rights to ask, "If VoIP isn't currently secure, how can it be offered to companies and individuals as a legitimate service? And if it is secure, why all the fuss?"
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