A DDoS attack represents a nightmare for all those all companies that provide web services that could be blocked by similar offensive. The DDoS is becoming famous also because it was a preferred mode of attack of group of hacktivists such as the famous Anonymous. China confirmed its leadership in the chart of attack source country rankings with Thailand and the United States. The cyber threat has hit all the sector of industry such as financial services, e-Commerce, payment processing, SaaS, travel/hospitality and gaming.”]