Business is converged to Information and now eventually everything is getting consolidated to Digital. This makes information, and hence business more vulnerable to threats & intrusion. In today's high technology environment, organisations are becoming more and more dependent on their information systems. They are increasingly concerned about the proper use of information. Risk & pace of new threats are getting faster with data being accessible via smartphones, tabs along with dependence on Internet of Things.A key security component is Network Security. Network security consists of the policies and practices adopted to prevent and monitor unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources.
Network security involves the authorization of access to data in a network, which is controlled by the network administrator. Users choose or are assigned an ID and password or other authenticating information that allows them access to information and programs within their authority. Network security covers a variety of computer networks, both public and private, that are used in everyday jobs; conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access. Network security is involved in organizations, enterprises, and other types of institutions. It does as its title explains: It secures the network, as well as protecting and overseeing operations being done. The most common and simple way of protecting a network resource is by assigning it a unique name and a corresponding password.