It is very important to keep web service availability and performance in order to maintain business continue and make profit. Because web service is high accessibility and high connectivity with enterprise internal database. Hence it has become the target for competitors and malicious people. The purpose is to paralyze corporate web service and try get the important sensitive data from internal database via web service. For progressive sophisticated attack techniques, Imperva provides flexible protection solution, from outside to inside, from cloud to ground, Imperva is able to help enterprise to build fast, effective and easy to management protecting circle for critical web and data.