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Internet被人们形象地比喻成信息高速公路,实际使用过Internet的朋友也确实能感受到信息在这个虚拟的网际空间中自由穿梭的轻松。但是,信息作为这样一条特殊公路上的“车辆”,也会象日常生活中一样,有可能发生交通安全事故,甚至丢失。 我们也许会从报刊及各种媒体中了解到国际互联网上经常会有一些涉及信息安全问题事件发生。例如:去年阿根廷的一个男孩就在无意间撞入美国军事情报网中;美国司法部网页遭“黑客’涂鸦;日本警视厅的资料被“网虫”任意翻看……这样的事情每天每时都有发生,网络信息安全问题日益严重,在全世界引起广泛的注意。
Internet has been compared to people like the information highway, the actual use of Internet friends can really feel the freedom of information in this virtual cyber space shuttle. However, as a “vehicle” on such a special road, the information may also be like a traffic accident in everyday life and may even be lost. We may know from newspapers and various media that there are often some incidents involving information security on the Internet. For example, a boy in Argentina accidentally hit the U.S. military intelligence network last year; the page of the U.S. Department of Justice was graffiti by a “hacker”; the data of the Japanese Metropolitan Police Department was arbitrarily read by “web worms.” Such a thing happens daily Have occurred, the network information security problems are increasingly serious, aroused widespread attention around the world.