1) The document discusses internet and computer security, including securing web browsers, encrypting emails, using firewalls and passwords, and protecting against malware like viruses, worms, Trojan horses, spyware, and adware. 2) It also covers types of computer crimes such as hacking, phishing, computer viruses, cyberstalking, and identity theft. 3) Some recommended anti-virus software includes BkavPro Internet Security and Kaspersky Internet Security 2011 which provide protection from threats, attacks, and unwanted information.

1. English for ComputingTrầnThị Mai

2. NguyễnThịHồngNgọc

3. DươngThịThanhThúy

4. NguyễnThịAnhThư

5. VũThịTrâmINTERNET SECURITY

6. 1. Security on the Web

7. Security is crucial when you send confidential information online

8. Buying a book

9. Set all security alerts to high on your web browser

10. Web browser:software application for retrieving, presenting, and traversing information resources on the WWW

11. Lock disable or delete cookies

12. Acookie (web cookie, browser cookie, and HTTP cookie) is a piece of text stored on a user's computer by their web browser

13. Digital certificate  files that are like digital identification cards to identify users & servers

14. Secure Sockets Layer (SSL)is a commonly-used protocol for managing the security of a message transmission on the Internet

15. 2. Email privacy

16. Email travels across the NetCan be copied temporarily onto many computersCan be read by others

17.  Encode it with some form of encryption

18. Pretty Good Privacy (PGP)A freeware program written by Phil Zimmerman

20. 3. Network security

21. Passwordsfor access control

22. Firewalls A system designed to prevent unauthorized access to or from a private network

23. Several types of firewall techniques:Packet filterApplication gatewayCircuit-level gatewayProxy server

24. Encryption and decryption systems

25. 4. Malware protection

26. Malware (malicious software) : programs designed to infiltrate or damage our computer

27. For example: viruseswormsTrojansspywareadware

28. Viruses A program or piece of code that is loaded onto your computer via a disc drive or the Internet without your knowledge

29. Attachesitself to a program or file enabling it to spread from one computer to another Can copy itself

30. Cannot infect your computer unless you run or open the malicious programWorms Similar to a virus by design and is considered to be a sub-class of a virus.

31. Has the capability to spread from computer to computer without any human action Has the capability to replicateitself and use memory

32. Cannot attach itself to other programsTrojans horse A destructive program that masquerades as a benign application

33. Do not replicate themselves One of the most insidious types of Trojan horse is a program that claims to rid your computer of viruses but instead introduces viruses onto your computer.

34. Spyware Atype of malware that can be installed on computers, and which collects small pieces of information about users without their knowledge

35. Spyware programs can collect various types of personal information, such as Internet surfing habits and sites that have been visited, but can also interfere with user control of the computer in other ways, such as installing additional software and redirecting Web browser activity

36. AdwareSoftware application in which advertising banners are displayed while the program is running

37. SOME ANTI- VIRUS SOFTWARE:BkavPro Internet Securityis antivirus software pioneer in the use of cloud technology (công nghệ điện toán đám mây)

38. Kaspersky Internet Security 2011 provides comprehensive protection for your computer from known and emerging threats, network attacks and phishing, spam and other unwanted information

39. 5. Types of computer crimes

40. Computer crimes: criminal activities, involve the use of information technology to gain an illegal or an unauthorized access to a computer system with intent of damaging, deleting or altering computer data

41. Some types: Hacking:The activity of breaking into a computer system to gain an unauthorized access

42. Phishing:Phishing is the act of attempting to acquire sensitive information like usernames, passwords and credit card details by disguising as a trustworthy source Computer Viruses:Computer viruses are computer programs that can replicate themselves and harm the computer systems on a network without the knowledge of the system users