网瘾的危害英文ppt课件

1、Internet Safety,1,2,3,1.The Meaning Of Internet Safety,The 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.,4,5,1) free, opening and

2、convenient,6,2)It has huge storage,7,3)cultivating the good habit of learning,8,4)A good tool for playing and working,9,10,11,2) Its full of dangerous virus,12,3) poisonous information and pictures, it is hard to be observed,13,4) the information is not to be trusted,14,Internet Security Problem,Two

3、 factors,Virus,Hacker,virus,A computer virus is a computer program that can replicate itself and spread from one computer to another,No signal,Hacker,Attack by hacker,e-mail spoofing by hacker,disguise someone user would know,obtain secret by cheating,begin to attack,Classification of Computer Crime

4、,illegal access,24,25,Classification of Computer Crime,illegal interception data interference systems interference misuse of devices, forgery (ID theft), and electronic fraud,26,27,Basic characteristics of cybercrime,1 high IQ of Criminal. 2 the cost of cybercrime is low and the harm is great. 3 Dif

5、ficult to obtain and Preservation evidence. 4 Difficult to prevent. 5 Wide spread rapidly. 6 easy to hidden.,Financial Fraud and its Solution,Genuine Antivirus Software,Law protection In China,Copyright law,prevention and control measures of cyber crime,Thinking: what should we postgraduates do?,Int

6、ernet “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 wh

7、o 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 “S

8、mart 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

9、 credulous for your own good. There is no pie from sky!,internet addition does harm to our daily life,48,waste precious time,49,people may meet dirty words, rumors, four-letter information, porn activities and other bad information,50,can you leave a small space for me to put the food in the refrige

10、rator?,51,darling, go home,52,internet addition,53,he will fall behind,54,Cultivate healthy habits,55,we should deal with the Internet carefully,parents are responsible for their own children,56,The conclusion of our task,1.Internet has its advantages and disadvantages. 2.Internet arises security problems, we must pay attention to these problems.,57,3.with the d