Security researchers have found that Voice over Internet Protocol (VoIP) attacks comprised more than double the number of security vulnerabilities in 2007 compared to all of 2006. While VoIP threats seem to be here to stay, the defensive technology is still playing catch-up. And while many users are becoming increasingly savvy to spam, phishing and other Internet related scams, that awareness doesn't always translate to voice protocols. Security experts anticipate a 50 percent increase in VoIP-related threats by the end of this year.
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