计算机作为一种高速的信息处理工具和大容量的信息存储设备，已被广泛地应用 到国民经济的各个领域。随之而来的是计算机系统安全和计算机信息保密问题。由于大量 的保密数据、情报被储存在计算机系统中，使得计算机信息系统的潜在危险性和不安全性 变得越来越突出。本文详细分析了计算机泄密的主要途径，并指出了该采取的防范措施。 As a high-speed information processing tool and large-capacity information storage device, computer has been widely applied to all fields of national economy. Followed by the computer system security and computer confidentiality issues. Due to the large amount of confidential data, intelligence is stored in the computer system, making the potential dangers and unsafeness of the computer information system becoming more and more prominent. This article analyzes in detail the main ways of computer leaks, and points out the precautions to be taken.