viruses spyware malware and phishing
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Viruses, Spyware , Malware and Phishing. Understand what a virus is and the different types of viruses which can infect a computer Know how to avoid viruses Understand how to remove a virus from a PC. Computer Virus.

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Understand what a virus is and the different types of viruses which can infect a computer
  • Know how to avoid viruses
  • Understand how to remove a virus from a PC
computer virus
Computer Virus

A programor piece of code that is loaded onto your computer without your knowledge and runs against your wishes. Viruses can replicate themselves.

how do viruses spread
How do viruses spread?

You often download the virus without realising, it might be attached to a another file, for example a picture or program you actually want.

how do viruses spread1
How do viruses spread?

Viruses can be downloaded by opening an email attachment, never open an email attachment from someone you do not know!


Spyware monitorsuser activity on the Internet and transmitsthat information in the background to someone else. Spyware can gather information about e-mail addresses and even passwords and credit card number


Phishing is when you receive an e-mail falsely claiming to be a legitimate company in an attempt to scam the user into surrendering privateinformation that will be used for identity theft.

Often the e-mail directs you to visit a website where you are asked to update personal information, such as passwords and credit card, social security, and bank account numbers. The Website, however, is bogus and set up only to steal your information.


> Self replicating malware

>Uses a computer network to make copies of itself and infect computers

trojan horse
Trojan horse
  • Software that will be downloaded for a useful purpose, e.g. Free software
  • However, it also steals information or harms the system
how can you protect your pc
How can you protect your PC?
  • Install an anti-virus program
  • Update software regularly
  • Use strong passwords and keep them secret
  • Never turn off your firewall
  • Be cautious when downloading software or files fro the internet

Choose one of the viruses below. Use the internet to find out:

  • How is spread
  • What it did
  • How many computers were infected

Love bug worm Melissa computer virus Nimda virus

Code Red Bugbear Blaster

q1 what is a firewall
Q1:What is a firewall?

A – Antivirus software

B – Software that logs internet activity

C – A filter for a internet connection

q2 what is phishing
Q2:What is phishing?

A - decryption method that uses complex algorithms

B - A method of online identity theft

B - A way to send spam mail to millions of people at once

q3 what is the best way to protect your pc
Q3: What is the best way to protect your PC?

A – To avoid using a USB drive with the computer

B - To install an up to date anti virus program from a trusted source

C – To avoid emails