Ever wondered about the threats your computer faces....

4. Here is my computer…

6. and, here is yours…

8. After few months,

9. My computer…

11. Your computer…

12. Some where in here…
My computer…

13. Why

14. because, you did not know about…

16. Computer security is the process of preventing and
detecting an unauthorized access to your computer.

17. Give it some
thought !
• Name three things you do that
are harmful to your computer.
• How can you protect your
computer?
• What is the significance of the
Stuxnet worm and NASA’s
donation of computers?

18. HOME
are computers not secure?
does malware enter?
can you do?

19. Notice anything unusual?

20. This is one of the first
signs you notice, when
MALWARE enters
your computer.

21. Malware is a malicious software that enters a
computer without the owner’s consent.

22. You are on your computer
working normally and suddenly
something pops up.

24. Viruses and Worms enter your
computer and copy, damage or delete
your data.

25. Trojan Horses pretend to be helpful software

26. Trojan Horses pretend to be helpful software
but their purpose is external excess to
the computer.

27. You might have seen something similar to
this…

29. Such fake antivirus scanners are
called SPYWARE

30. Spyware secretly watches and records your
actions online.

31. Spyware secretly watches and records your
actions online or sends you endless pop-up
ads.

32. Phishing is a criminal process to acquire sensitive
information

33. Phishing is a criminal process to acquire sensitive
information by pretending to be trustworthy.

34. There are also many other kinds of malware like
wabbits, adware, backdoors, keyloggers etc.

35. Click to go HOME
Click to continue

37. Let’s play
some
World of
Warcraft !

38. Let’s play
some
World of
Warcraft !

40. Malware?

41. How did
that enter?

42. Through Computer Vulnerabilities
How did
that enter?

43. Computer Vulnerabilities are weaknesses or
loop holes in a computer software through which
an attacker sends malware.
Example…

44. A famous computer worm in 2010 called
Stuxnet attacked various computers in
the world because of many vulnerabilities
such as…

45. “A flaw was found in the way Windows XP systems
are allowed to switch user keyboard layouts.”

46. Through this and many more vulnerabilities
the worm infected about 100,000 computers.

47. Click to go HOME
Click to continue

48. Whenever a virus attacks, there is always an
increase in the total number of hits in the world.

49. What can you do to stop this increase?

50. Install
Antiviru
s
Softwar
e

51. Use programs at lower

52. Turn on Firewall

53. Did you know?

54. NASA sold some of its computers without
clearing the hard drives. It might have lost
sensitive information.

55. You could have done the same…

56. So, break the hard drive before
disposing your computer

57. Update computer regularly

59. Listen to your computer and
don’t visit harmful websites

60. Create Back-ups

61. What if you don’t follow these
methods?

63. Invasion of privacy

64. Loss of confidential
information

65. which could result in…

66. Remember this…
My computer…

67. However, if you do follow these rules,
you and your computer will be…

68. HAPPY

69. By Sanjana Kambalapally
March 4, 2011
ITGS Project