So say Jeremy Rauch and David Goldsmith, researchers at the IT security firm Matasano.

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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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Mr. GOLDSMITH: David Addington bit his head off.

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