Messaging security remains one of the most popular security services being offered through SAAS. However, a number of established vendors, startups and analysts believe Web security and other services will have their time in the sun soon as well.

“There’s a set of services that are actually ideally delivered as a SAAS just from a technical, problem-solving implementation standpoint,” said Paul Judge, chief technology officer of Purewire. “Those are typically things that already involve proxying the user’s traffic and inspecting it.”

Judge is banking that Web security falls into that category. Purewire was launched this year with that as a focus, as was fellow SAAS security startup Zscaler. For now, Purewire offers traffic inspection and Web filtering. However, Judge also listed firewall technology as an interesting possibility for SAAS—though he acknowledged it could be a problem due to the amount of traffic that would have to be inspected quickly.

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