Emily Ansell 8Kviruses hacking backups

next

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!nextback

home

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.

nextback

home

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.

nextback

home

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.

nextback

home

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

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!

nextback

home

Hacking

• Contents:

What is hacking

what damage can hackers do

how can you prevent hackers

nextback

home

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

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

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.

nextback

home

backups

• Contents

Why is it important

Where to keep back ups

How to keep backups secure

nextback

home

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!

nextback

home

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

nextback

home

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.

nextback

home

How I backed up my work

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

nextback

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