我们生活在一个信息科技发达的时代，网络的应用已经逐渐取代电话和电视，给我们的生活带来了许多的方便，已然成为我们的生活中不可或缺的一部分。然而随着网络科技的逐步发展，网络的应用逐渐普及，以网络为载体的犯罪行为也逐渐出现。企业电脑安全受到侵犯的比例为50%，1998年我国公安部破获黑客案件近百起，其中以经济为目的.的计算机犯罪占70%，计算机犯罪能使一个企业倒闭，个人隐私的泄露，或是一个国家经济的瘫痪，这些绝非危言耸听。因而网络安全的维护变的越来越重要。
计算机网络犯罪的原因多种多样。（一）计算机使用者安全意识淡薄。很多计算机并没有安装杀毒软件或防火墙，或者不能保证杀毒软件的每天更新，这就给计算机犯罪人员以可乘之机。（二）网上贪图非法钱财。实施网络犯罪的动机多种多样，但从数量上分析，贪图钱财、牟取私利占大多数。（三）取证困难，证据有限网络犯罪留下的最多也仅有电磁纪录，而不会有指纹、DNA等证据，而且这些证据十分容易毁灭。（四）多数国家对计算机打击力度不大。大多数国家的法律对防治网络犯罪没有做大的努力，其现有的法律不足以对互联网犯罪构成真正的威胁。
在我看来，预防网络犯罪我们首先应该从在日常生活中建立一个健全的人生观价值观开始，而不是随性而为。网络在我们日后的生活肯定会占据越来越重要的位置，我们应该应用在学校学习的知识和生活中的经验，积极地预防和避免上当受骗。在平时积攒足够的网络使用经验和网络犯罪防范意识，充分的保护自己，远离网络犯罪的侵犯。
We live in a technology era, the network has gradually replaced the telephone and television, brought a lot of convenience to our lives, has become an indispensable part of our life. However, with the development of network technology, the network application becomes more and more popular and the crime base on the network also come gradually. The proportion of companies’ computer security violated is 50%.In 1998,our country the public security cracked hacker case nearly 100,the purpose for economy of computer crime accounted for 70%.The cyber crime can make a business failure, leakage personal privacy, or the paralysis of a national economic, this is not alarmist. Thus the network security becomes more and more important.
There are various reasons of cyber crime.First,the computer user's security awareness. Many computers do not install antivirus software and firewall, or can not guarantee the antivirus software updated daily, which give the computer criminals an opportunity. Second,for illegal money online. The implementation of network crimes is various, but from the quantitative analysis,for money, gain on the majority. Third, the difficulties to get the evidence.The limited evidence of network crime left most also only have electromagnetic records, but there is no fingerprint or DNA evidence, but such evidence is also very easy to destroy. Fourth,the crackdown is not great on the computer in majority of countries. The laws of most countries do not make efforts on the prevention and control of network crimes,and the law is not sufficient to constitute a real threat to the Internet crime. In my opinion, the prevention of cyber crime we should first of all from the establishment
of a sound outlook on life and values in the daily life, but not his.The network will occupy an increasingly important position in our future life, we should use the knowledge learning in school and life experience, to prevent and avoid being deceived. Accumulating enough Internet experience and prevention awareness of cyber crime, fully protect ourselves, away from the infringement of network crime.
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