Defenses against computer viruses include protection against unauthorized access to computer systems , using only trusted sources for data and programs , and maintaining virus - scanning software 防止计算机病毒包括保护计算机系统免遭未经许可的访问,仅使用可信的数据和程序资源,以及维护病毒扫描软件。
An intrusion detection system ( ids ) is an automated system for the detection of computer system intrusions . the main goal of an ids is to detect unauthorized use , misuse and abuse of computer systems by both system insiders and external intruders 入侵检测系统是指能够自动识别计算机系统内的入侵行为的系统,它可以检测出内部用户或外部入侵者的非授权使用、误用和恶意攻击等异常行为模式,保护计算机系统的安全。
As a kind of initiative safe protection means , intrusion detection can detect not only the external intrusion behaviors , but also the inside unauthorized activities of the user . the intrusion detection system plays a very important role in protecting the security of the computer system 入侵检测作为一种主动的安全防护手段,不仅能检测来自外部的入侵行为,同时也能检测内部用户的未授权活动,在保护计算机系统的安全中,发挥了重要的作用。
To help protect computer systems from malicious mobile code , to allow code from unknown origins to run with protection , and to help prevent trusted code from intentionally or accidentally compromising security , the . net framework provides a security mechanism called code access security 为了帮助保护计算机系统免受恶意移动代码的危害,让来源不明的代码安全运行,防止受信任的代码有意或无意地危害安全, . net framework提供了一种称为“代码访问安全性”的安全机制。