计算机网络在安全问题上存在一定威胁与挑战,如何有效应对此问题成为目前关注的重点,本文阐述了计算机网络安全目前存在的问题、现状,以及各种网络不安全因素的特征,以及相应的对策进行了简略的讨论。随着计算机网络技术的迅速发展,网络已经普及到人们生活的方方面面,从刚刚开始阶段的上网阅览各种消息、图片、影视观看,到现在几乎人手一部智能手机的现状,使网络更是无时无刻如影随行,生活中的各种交易和支付也可以通过网络来实现,只要有网络覆盖的地方不带一分钱的生活和旅游也是可以实现 Computer network has some threats and challenges on the security issue, how to effectively deal with this issue has become the focus of attention at present, this article describes the current problems in computer network security, status quo, as well as the characteristics of various network insecurity, as well as the corresponding countermeasures A brief discussion. With the rapid development of computer network technology, the network has been popularized to all aspects of people’s lives. From the beginning of the Internet access to browse all kinds of information, pictures, video viewing, to the present almost hand the status of a smart phone, so that the network is all the time Go hand in hand, life in a variety of transactions and payments can also be achieved through the Internet, as long as there is a network of places without a penny of life and travel can be achieved