In a panel debate, John Meakin, group head of information security at the Standard Chartered Bank, argued that simple IP telephony clients such as Skype would be attractive to corporates if vulnerabilities were removed and performance improved.

"When Wi-Fi came along, people told vendors what a pile of crap the Wireless Equivalent Privacy [WEP] protocol was, and vendors responded; we need that now in VoIP," said Meakin. "Data networks are not perfect. If we are contemplating pushing voice into that same can of worms whilst glibly saying that security is OK, we are up the creek without a paddle."

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