The final layers of security include a pair of authentication certificates residing on the handsets, as well as requiring users to log-in with a password before they can use the SIP (Session Initiation Protocol) server.

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Leaders from China and Estonia used their five minutes in the plenary session to announce ratification of the Kyoto protocol.

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But apps written to the protocol can be vulnerable to denial-of-service, session hijacking, and man-in-the middle attacks over the Internet, as well as an attacker actually able to "watch" the transactions, says David Goldsmith, CEO of Matasano Security, who will present the firm's new research on FIX at the upcoming Black Hat USA briefings later this month.

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Although the FIX protocol was updated in the past year to free FIX apps from that session layer, he says, most of these apps are still running the FIX session layer.

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