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英国论文代写范文精选-Information Network Security

2016-06-03 | 来源:51Due教员组 | 类别:更多范文

51Due英国论文代写网精选assignment代写范文:“Information Network Security”,这篇论文介绍了信息网络安全。随着现代网络信息技术的发展,计算机网络已经成为人们生活和工作中不可或缺的一部分。人们越来越依赖网络,信息安全问题变得越来越突出,大量的存储在网络中的信息,可以在任何时候,非法侵入,存在严重的安全隐患。因此,计算机网络的信息安全变得越来越重要。

With the development of modern network information technology, computer network has become an indispensable part of people's life and work. People become increasingly dependent on the network, information security becomes more and more prominent, large amounts of information stored in the network, may be illegal intrusion at any time, there is a serious security risks.

Therefore, the information security of computer network becomes more and more important. Information security is refers to the safety protection and taken to establish the information processing system of the technology and the management, in order to achieve electronic information confidentiality, integrity, availability, controllability and non-repudiation.

In the information age, the computer network has become an indispensable tool for information exchange. However, because the computer network is open, interconnected, various connection methods and terminal distribution inhomogeneity, plus technical weaknesses itself and human negligence, resulting in the network is susceptible to computer viruses, hackers and malicious software.

In the face of threats of invasion of network security, must consider the security of information this critical problem. The security of network information is divided into two levels of network security and information security. Network security including system security, namely hardware platform, operating system, application software; operation service security, which ensures continuity, high efficiency service. Information security mainly refers to data security, including data encryption, backup, procedures etc.

In recent years, the network threat diversified, the biggest temptation and network attack is the economic interest. Network attack organized, specific goal and behavior tendency has already become a major trend of current network attack. Network deception constantly upgrading, in the current network deception exists everywhere in blackmail software, net swims pilfer date and net silver-colored pilfer date trojan, shows some lawless elements of network attack is driven by economic interests.

In addition, some hackers are combined to form a group or organization, in the network attack, the internal personnel have a clear division of labor, making malicious code or even destructive virus, spread the code so as to obtain the required information to achieve the attack. Network attacks have been from the initial interest in network technology to the illegal gain economic benefits in the direction of change.Is often old vulnerabilities are managers or network technology personnel repair, new security vulnerabilities, the more serious hazards arise.

What is more, some hackers or network technology researchers found new security vulnerabilities, does not immediately released, but their use, until the time comes, was released. On the other hand, is managers do not have time to upgrade and maintenance of the network system, to create security vulnerabilities.

At present, although the society often stressed the need to improve information security awareness, but not to its application to practical problems. We know that, in the event of network attack is still the network management is not in place or negligence, the computer system of many enterprises and companies don't even fortification.

Some even have a security service system of professional, but in use after a period of time, found not so, free, who changes to security policy, cause the threat to network security mismanagement. These are not strong awareness of network security caused, and this situation in the present society is still widespread.

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