1. Emily Ansell 8K viruseshackingbackups next

2. Viruses A virus is harmful software that can be passed to different computers. A virus can delete and damage your personal folders and documents they get onto your computer by websites and emails they can make your computer freeze and crash Your computer will be sad, so protect it! next back home

3. What damage can a virus do? A virus can delete your important personal files can make your computer crash and freeze Can share your private information on the internet. A virus can spread malicious software onto other computers A virus can even make your computer totally unusable IF YOU GET A VIRUS TELL AN ADULT. next back home

4. Different types of virus Boot Viruses- stop computers booting up properly Trojans- pretend to be nice but there not Worm virus- they self-replicate and have negative effects on your computer Overwrite Viruses- it deletes information contained in the files that it infects Directory Virus- change the path that indicate the location of a file. next back home

5. How to prevent viruses How can we prevent computer viruses is the big question that millions of users make everyday. The first rule is to have an up-to-date antivirus your antivirus software needs to be updated every day. Viruses are always appearing make sure you not to download anything from any website you don't know and trust. Do not open e-mail attachments from people you don't know and be careful even if it is someone you know. If there computer was taken over they could send the virus to you. next back home

6. Stuxnet This is a virus that is only released in summer It is a computer worm it was discovered in July 2010 it targets industrial equipment e.g security of a major company These are some of the countries effected: Japan, Pakistan, Malaysia, UK, Australia, U.S, India, Indonesia and Iran. It was used to target the Iranian government next back home

7. Drawbacks to anti-virus software Anti virus software can take up lots of space on your computer. You need to be careful when installing anti-viral software and you need to know where it has come from and if it can be trusted. free anti-virus software is not always of a high quality. High quality anti-virus software is quite expensive. they can sometimes slow down your internet connection. They can also damage some files or documents on your computer be aware! next back home

8. Hacking Contents: What is hacking what damage can hackers do how can you prevent hackers next back home

9. What is hacking Hacking is illegally gaining access to another persons computer and personal files. Hackers can damage and delete your files Computer hacking is most popular with teenagers and young adults. Some people decide to begin hacking to impress their friends or just to show off Many major businesses actually employ hackers to point out flaws in their security. next back home

10. What damage can hackers do? Hackers can vandalize your personal files and documents They can steal and share your private information illegally Make your files infected with a virus to cause damage Hackers can destroy and delete your files They can also make your computer more liable to computer viruses back next home

11. How can you prevent hackers? Use a high quality anti-virus software and update it every day. new viruses and hackers pop-up every day Don’t download files of the internet Be careful when receiving e-mails Don’t click or visit untrustworthy websites. Don’t give out personal details e.g. passwords. next back home

12. backups Contents Why is it important Where to keep back ups How to keep backups secure next back home

13. Why is backing up important If data is not backed up and a system failure occurs days, months and even years of work are potentially lost. So remember: backup your files! next back home

14. Where should you store your backups There are many places where you can store you're backed up files A memory stick/USB A CD/DVD On another computer Hard drive On a different place on your own computer e.g. on the ~P~ drive next back home

15. How can you keep backups secure To keep back ups secure you could: Install anti-virus software Don’t let anybody else use your USB or CD/DVD. next back home

16. How I backed up my work

17. Comparison Laura 13 “ I was at home, and I was on the internet and then the phone rang and it was for me, I did not think about leaving the internet so I left it. After I had been on the phone for about half an hour I returned to my computer. I had a project I needed to do for school, I searched frantically for the document but I could not find it. I had been hacked.” Jonathan 15 “I know everyone tells me that I should back up my files but I don’t see the point. My friends have lost data but I can’t see the risk. And anyway I don’t have many important files on my computer and I don’t see the problem home next back

18. Bibliography These are the WebPages and resources I used to help me with this: Wikipedia About.com Answers.com and my noggin! Thank you for watching! home back