NETWORK SECURITY

Computer security protects your computer and everything related with it. Most importantly, the protection of the information you have stored in your system That`s why computer security is sometimes called as “information security’ or network security. It is defined as the prevention of network resources against unauthorized users or any user on network can access the data, modify or destruct if proper security is not provided. In a network data is safe only when restrictions are placed for unauthorized access.

Protection of information safely in the computer, under the operating system`s control can be implemented efficiently. Usually physically securing the computer system, providing authentication mechanisms to perform log-ins and managing resource access based on authentication is enough when there is just one computer. But, in the world of networks, multi-vendor configurations and open systems, information is increasingly on the move and being shared by different users on different systems. Information that`s protected securely by an operating system becomes much more vulnerable when it is being transmitted and shared via network connections. Instead of being available to only a relatively small population of users within your own organization, your computer system potentially open to attack by anyone. The number of possible users, the ease of access from remote and sometimes anonymous locations and the oppurtunity for error intruduced by the incresing complexity of networked systems all contribute to this vulnerability.