DDoS attacks are increasing in quantity and severity as these attacks become increasingly complex and persistent. Typical DDoS attacks have evolved to include simultaneous multiple attack vectors that test simple mitigation techniques. Attacks using dynamic IP attacks that challenge mitigation through simple blacklisting are now ubiquitous. Volumetric network-level DDoS attacks at staggering throughput rates of hundreds of Gbps and hundreds of millions of packets per seconds have become commonplace, disabling organizations’ network and infrastructure. SSL-based and application level DDoS attacks that are effective in exploiting bottlenecks in the IT architecture of enterprises have become more prevalent. Launching DDoS attacks has never been easier. Cloud Based Ddos Service The technical barriers have mostly been removed due to the commoditization of DDoS tools and the emergence of DDoS-as-a-Service tools, which enable sophisticated multi-vector attacks on both the network and application layer. These attacks adapt quickly and require an immediate response. When volumetric attack grows, no matter what on-premise equipment exists, a diversion to cloud scrubbing is required in order to absorb and mitigate the attack, else risk suffering service degradation and outages.