网瘾的危害英文-课件

Internet Safety1.The Meaning Of Internet SafetyThe software,hardware and data in the computer system is protected.The Internet can function well without leaking,destructing and replacing.But in many situations,it means the safety of information on the Internet.1)free,opening and convenient 2)It has huge storage3)cultivating the good habit of learning4)A good tool for playing and working2)Its full of dangerous virus3)poisonous information and pictures,it is hard to be observed4)the information is not to be trustedTwo factorsVirusHackerA computer virus is a computer program that can replicate itself and spread from one computer to anotherNo signale-mail spoofingby hackerdisguise someone user would knowobtain secret by cheatingbegin to attackClassification of Computer Crimeillegal accessClassification of Computer Crimeillegal interceptiondata interferencesystems interferencemisuse of devices,forgery(ID theft),and electronic fraudBasic characteristics of cybercrime1 high IQ of Criminal.2 the cost of cybercrime is low and the harm is great.3 Difficult to obtain and Preservation evidence.4 Difficult to prevent.5 Wide spread rapidly.6 easy to hidden.Financial Fraud and its SolutionGenuine Antivirus SoftwareLaw protectionIn ChinaCopyright lawprevention and control measures of cyber crimeThinking:what should we postgraduates do?Internet“Smart Rules”1.Do not give out personal information or send pictures to a person you only know online.They may not be who you think they are.2.Tell an adult when someone online makes you feel uncomfortable.3.Dont agree to meet someone you only know online.It could actually be a person who means to do you harm.Internet“Smart Rules”4.Dont reply to e-mail messages that make you feel uncomfortable.5.Dont give out credit card numbers to anyone.6.Dont forward chain letters.7.Dont copy music illegally from the internet.8.E-mail is not private.Do not assume that it is.Internet“Smart Rules”9.Dont download anything without asking your teacher or parent.You may download a virus.10.If you receive an e-mail asking you to forward something to everyone,.dont.11.Dont tell anyone your account password.12.Dont e-mail in UPPERCASE.Its like shouting.Last but not least,dont be credulous for your own good.There is no pie from sky!internet addition does harm to our daily lifewaste precious time people may meet dirty words,rumors,four-letter information,porn activities and other bad informationcan you leave a small space for me to put the food in the refrigerator?darling,go homeinternet additionhe will fall behindCultivate healthy habitswe should deal with the Internet carefully parents are responsiblefor their own children The conclusion of our task1.Internet has its advantages and disadvantages.2.Internet arises security problems,we must pay attention to these problems.3.with the development of technology,cyber crime is widespread.We must safeguard our rights.4.Internet is wonderful,but we shouldnt be addicted to it.