Network Security Situation and Development Prospect

Network information security is an important issue mattering national security and sovereignty, social stability, cultural inheritance and development. Its importance is escalating with the accelerated pace of global information. Information security is a comprehensive discipline involving computer science, network technology, communication technology, cryptography, information security technology, applied mathematics, number theory, information theory and other disciplines. It mainly refers to the condition that network hardware, software and system data are protected from destruction, change and divulgation from accidental or malicious reasons so that the system can run continuously and reliably with no interrupted network service. With the rapid development of computer technology, information networks have become an important guarantee of social development. Information networks involve many national areas such as government, military, culture, education etc. The information stored, transmitted and processed by the net is significant for government's macro-control, commercial economy information, bank money transfer, equity securities, energy resource data, scientific data and other important information. Most of them are sensitive information, even a state secret so it inevitably will attract a variety of man-made attacks from around the world. Often computer crime is difficult to leave evidence, which greatly stimulate the emergence of high-tech computer crimes. The rapid increase of computer crime leave the world computer systems especially network system facing a serious threat, and become one of serious social problem.