2 For each of the above malicious programs, state the harmful effects it can have on a computer.

3 How do you know if a computer is possibly infected?

4 Give at least three precautions that youcan take against malicious programs.

5 Give at least three examples of computer crimes.

6 Briefly describe each of the computer crimes mentioned above.

7 Give at least three ways of protecting your personal data.

8 You can provide additional information that is related to the title but not listed in the questions above.

2. These programs enter the computer through infected storage media, email, and files downloaded from unauthorised websites.

3.An infected computer may run slower than normal, fail to run (stops responding), crash or cause error messages to appear on the screen.

4.Install anti-virus software and anti-spyware to protect your computer,Update your anti-virus software and anti-spyware regularly,Backup your data regularly to avoid unnecessary loss of data.

5.Spam, Unauthorised access,Intellectual property theft

6.Computer crimes are illegal acts performed using computers. These illegal acts are against the laws in the country.

7.Change password frequently,use a password that contains numerals, uppercase letters and lowercase letters,Avoid using ‘simple’ passwords.

8.It is important not to reveal personal information on unsecured websites and social media websites. Others may use the information for illegal purposes,Users need to be careful when giving personal information like identification numbers, telephone numbers and home addresses, as well as bank account numbers, credit card information and passwords over the internet.

1. Viruses, Trojan horses, worms

2.

3.

4.

5.

6.

7.

8.

2. These programs enter the computer through infected storage media, email, and files downloaded from unauthorized websites.

3. The computer may run slower than normal, fail to run (stops responding), crash or cause error messages to appear on the screen.

4. 

-Install anti-virus software and anti-spyware to protect your computer. -Update your anti-virus software and anti-spyware regularly. -Backup your data regularly to avoid unnecessary loss of data. -Use firewalls.

2. These programs enter the computer through infected storage media, email, and files downloaded from unauthorised websites.

3. An infected computer may run slower than normal, fail to run (stops responding), crash or cause error messages to appear on the screen.

4. Install anti-virus software and anti-spyware to protect your computer.Update your anti-virus software and anti-spyware regularly. Backup your data regularly to avoid unnecessary loss of data. Download files from trusted source. Use firewalls.

5.