As founders of a Web security software company go, these two definitely have some street cred. Laura Mather and Mike Eynon were senior fraud prevention specialists at eBay and PayPal, two of the most targeted brands on the Internet. When a pair like this decide to build a Website security product designed to detect and prevent fraud perpetrated via Website attacks, the market ought to take notice. "They're industry veterans...and they knew what they needed to help them, so they engineered a solution that they needed," says Bill Bradway, managing director at Bradway Research. "They're very well attuned to the pain that the fraud prevention teams have."

Mather and Eynon launched Silver Tail Systems in January 2008, and this spring released an enterprise-class software product that sits in the data center and monitors all Website traffic, looking for the behavioral abnormalities that Silver Tail's come to know indicate fraud. "The beauty of Website traffic is 99 percent of it is legitimate traffic," Mather says. "And our system has a really clear identifier of what normal traffic looks like."

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