We constantly live under the fear of losing job, money, people, breath and thus we build our security network. Security has now become an essential part of our daily life. There is no place where we can find absolute privacy and security. With the invention of nuclear weapons nations could or might feel secure but for the citizens the fear of war is never too far. Robbery, burglary, terrorism and other malicious practices being on the rise, security needs to be enforced for a healthy living. So, the quest for building a competent security system will be consistent.