近年来,网络黑客频频攻击国际互联网,最近这种袭击达到了登峰造极的地步。包括雅虎、亚马逊、有线电视新闻网等在内的国外著名网站连续受到不明黑客发起的“阻断服务”的攻击,造成了逾12亿美元的经济损失。不仅让世人为之震惊,亦引起各国对打击网络犯罪的重视。 随着互联网的普及,网络安全问题越来越重要。据统计,到1999年,全球个人电脑总数达4.4亿台, In recent years, cyber-hackers have frequently attacked the Internet and the recent attacks have reached a peak. Famous overseas websites, including Yahoo, Amazon, and CNN, have been hit by “blocking services” by unidentified hackers in succession, causing over 1.2 billion U.S. dollars in economic losses. It not only shocks the world but also draws the attention of all countries in the fight against cybercrime. With the popularization of Internet, the problem of network security is more and more important. According to statistics, by 1999, the total number of personal computers in the world reached 440 million units,