Encrypted VoIP not as secure as it sounds

(PhysOrg.com) -- Linguistics researchers working with computer scientists at the University of North Carolina have shown that voice conversations over the Internet, even if they are encrypted, are not as secure as generally thought. Presenting their findings at the IEEE Symposium on Security and Privacy in Oakland California this past week, the team showed that by breaking up voice messages broadcast over the Internet, and then parsing the bits into phonemes (human speech components) they could, using linguistic rules, essentially recreate conversations; at least to some degree. The results varied, but were in general good enough to gain the essence of what was being said.

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