计算与机专业英语ppt.pptVIP

2017-6-12 SEI.ECNU 1 Unit 11 Passage 3 Computer Security Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Vocabulary Breach n. 破坏 Ostensible: seeming to be the reason for or the purpose of sth, but usually hiding the real reason or purpose ostensible reason/purpose/aim Mum’s the word: [spoken], must not tell other people about a secret Character assassination = un unfair attack on someone’s character 人格损毁，诽谤 2017-6-12 SEI.ECNU 2 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Vocabulary Reinstate: vt.使恢复原职，使(法令，系统，法则等)恢复 Purloin: [formal] vt. to obtain sth without permission- often used humorously Tandem: n. a bicycle build for two riders sitting one behind the othe in tandem: doing sth together Foolproof adj. (方法、计划、系统等设计得)万无一失的,肯定成功的 2017-6-12 SEI.ECNU 3 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Vocabulary DoS = denial of service 拒绝服务 UPS = uninterruptible power supply 不间断电源 PIN = personal identification number个人身份识别 BBS = bulletin board system 公告板系统 2017-6-12 SEI.ECNU 4 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 2017-6-12 SEI.ECNU 5 What’s at stake? Breaches of computer security can be costly, even when no harm has occurred. As our entire economy and infrastructure moves to networked information systems, the potential costs grow higher every day. at stake    adv. 危如累卵,危险; breach    n. 破坏 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 2017-6-12 SEI.ECNU 6 Consumption of staff time Even if intruders do no damage, they still cost companies’ money. When an intrusion occurs, the computer staff must drop everything they’re doing and focus on the problem. It’s no wonder that security currently accounts for(…