Date Added: Jun 2012
Interconnected collection of autonomous computers called computer network. Most of the computer users participated in internet or intranet users. Network technologies included the function of exchange the information, data, application, and files are stored, modified and deleted .This stage most important factor is to secure the information store by a user. Data's safety is most important factor in the processes. Network security involves all activities that organizations, enterprises, and institutions undertake to protect the value and ongoing usability of assets and the integrity and continuity of operations. Unauthorized access is main challenge of network security.