还主要阐述计算机信息网络攻击和入侵的特点、安全因素以及其安全防范手段。
At the same time, the article expounds the features of computer information network being attacked and invaded, security factors and other security precautionary measures.
阐述企业办公自动化系统的重要性，使用中的安全隐患，以及应该采取的安全策略：安全防范手段、安全管理和安全认证。
To expound OA system of enterprise is important, safety hidden trouble in use, ought to adopt safety strategy: safety keeping away means, safety manage and safety authentication.
安全防范技术是保护国家和人民生命财产的重要手段，在预防事故、破获犯罪中起到了重要作用。
The safety defending technique is an important means of protecting country and people's life and possessions, and has important effect in the midst of preventing accident and uncovering crime.
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