Scientific Publishing Ltd.
Cyber attacks are continuing to hamper working of Internet services despite increased use of network security systems such as firewalls and Intrusion Protection Systems (IPS). Recent Distributed Denial of Service (DDoS) attacks to the supporters of Visa and Master Card websites made headlines on prime news channels all over the world. These attacks raised questions about the capabilities of the security systems that were used in the network to counteract such attacks. Firewall and IPS security systems are commonly used today as a front line defense mechanism to defend against DDoS attacks.