信息安全问题随着信息技术的迅猛发展,当今社会已进入一个信息时代,信息成为人类宝贵的资源。据调研资料显示,我国已拥有9300万台主机,互联网络的域名总数达69万多个,全国中文站点在26万个以上,上网计算机为900万台左右。全国上网单位占所有单位比例的53%,在网上进行电子交易的约占总数的11.5%。电子商务、远程教育、网上医疗等新型互联网服务正在全国迅速普及。与此同时,由于信息技术的广泛应用而带来的信息网络系统的安全问题,越来越受到各国政府和各大行业的高度关注。有关专家分析,世界上现有计算机病毒6万种以上,同时全球每天又有5—10种新病毒产生。目前已知的黑客站点就有20万个,平均每20秒钟便有一次黑客攻击。通过计算机网络犯罪已经渗入到政府机关、军事部门及各行各业,特别是在金融、证券、保险、银行、电信等领域,存在着 Information Security With the rapid development of information technology, today’s society has entered an information age, and information has become a precious resource for human beings. According to the survey data, China has 93 million hosts, the total number of Internet domain names is more than 690,000, more than 260,000 Chinese websites nationwide, and 9 million Internet computers. Internet access units account for 53% of all units and electronic transactions online account for about 11.5% of the total. New Internet services such as e-commerce, distance education and online medical services are rapidly gaining popularity throughout the country. At the same time, the security of information network system brought by the wide application of information technology has drawn more and more attention from governments and major industries all over the world. According to experts’ analysis, there are more than 60,000 computer viruses in the world, and 5-10 new viruses are produced every day in the world. There are currently 200,000 hacking sites known, with an average of hacking attacks occurring every 20 seconds. Crimes through computer networks have infiltrated government agencies, the military sector and all walks of life, especially in the fields of finance, securities, insurance, banking and telecommunications.