1、,The Computer Virus 計算機病毒,How do viruses spread?,計算機病毒定義 computer virus definition,All that can cause computer fault, destruction of computer data and program collectively referred to as a computer virus. 破壞計算機功能或者毀壞數(shù)據(jù)，影響計算機使用，并能自我復(fù)制的一組計算機指令或者程序代碼。 中華人民共和國計算機信息系統(tǒng)安全保護條例第二十八條,MYDOOM, 電郵蠕蟲病毒,PHISHING 網(wǎng)

2、絡(luò)釣魚,灰鴿子Gray pigeons,What is a computer virus?,A computer virus is a program designed to spread itself by first infecting executable files or the system areas of hard and floppy disks and then making copies of itself. （計算機病毒是通過首次感染可執(zhí)行文件或者系統(tǒng)硬盤和軟盤系統(tǒng)區(qū)域，進行傳播，并且能夠自我復(fù)制的程序代碼）,Common virus,Virus classificati

3、on,木馬病毒 Trojan 蠕蟲病毒 Worm 后門病毒 Backdoor 腳本病毒 Script 宏病毒 Macro 系統(tǒng)病毒 Win32、PE 捆綁機病毒 Binder 下載者病毒 downloader,好多種,How do viruses spread?,over execute program,over a network.,網(wǎng)頁要求安裝 外掛程序,over flash memory,電腦插上受病毒感染的U盤后，主機本身也會跟著中毒,The spread of the virus through the Internet speed,One day. .,What do viruse

4、s do to computers?,damage files interfere with your computers operation try to spread themselves around.,Effect of computer virus,Do not melt down your CPU Do not burn out your hard drive Do not cause your monitor to explode,Note that viruses cant do any damage to hardware:,Some general tips on avoi

5、ding virus infection,To data important files backup Install anti-virus software scanning for viruses on a regular basis,If you want to protect your computer,Use Antivirus Software！,Some antivirus softwares,Last，Let me introduce the Hacker Of couse ，not the movie,They are hackers,夜間活動頻繁職業(yè),In the comp

6、uter security context, a hacker is someone who seeks and exploits weaknesses in a computer system or computer network. Hackers may be motivated by a multitude of reasons, such as profit, protest, or challenge.,*黑客（Hacker）,While other uses of the word hacker exist that are not related to computer security, such as referring to someone with an advanced understanding of computers and computer networks, they are rarely used in mainstream context.