This article focuses on the need of security management for information system in the 21st century. It is described that changes in communication and information technologies and particularly their confluence has raised a number of concerns connected with the protection of organizational information assets. Achieving consensus regarding safeguards for an information system, among different stakeholders in an organization, has become more difficult than solving many technical problems that might arise. Authors of this article are suggesting for a development of vision for new organizational structure. They say that future users of information systems must address organizational problems at a time when the organizational form is being revolutionized. In order to be more efficient, effective, and responsive organizations must provide prominence to the use of networks and computer-based information systems but it is often found that some organizations facing pressures of organizational cost containment and external competition, they are rushing headlong into adopting IT without carefully planning and understanding the security concerns which creates future problems.