Computer Computer Security...Security...

By Kate By Kate Robinson 8P Robinson 8P •Viruses

•Hackers

•Backups

•Stuxnet

•Gary Mckinnon

Computer Computer VirusesViruses

What is a virus???What is a virus???

A virus is something that is sent to you through a message, it could be a A virus is something that is sent to you through a message, it could be a message to say that you’ve got a virus and to click on the link to get rid of message to say that you’ve got a virus and to click on the link to get rid of it but when you click on the link that’s the virus and you didn’t already it but when you click on the link that’s the virus and you didn’t already have one in the first place, then once the virus is unleashed into your have one in the first place, then once the virus is unleashed into your computer then it makes things very difficult.computer then it makes things very difficult.

What can a virus do???What can a virus do???

A virus can do a lot to your computer, for example it can slow down your A virus can do a lot to your computer, for example it can slow down your computer a lot or even shut it down completely. Another thing is that it computer a lot or even shut it down completely. Another thing is that it can delete some of your hard drive but one of the most annoying things is can delete some of your hard drive but one of the most annoying things is that it can make tiny changes to your computer which can be really that it can make tiny changes to your computer which can be really annoying.annoying.

What are the different types of virus???What are the different types of virus???

There is a few different types of virus including the Trojan horse, which is There is a few different types of virus including the Trojan horse, which is disguised as something else that is nice when actually it’s a virus so when disguised as something else that is nice when actually it’s a virus so when you click on it to get something nice you get something that is not very you click on it to get something nice you get something that is not very nice instead.nice instead.

Computer virusesComputer viruses

How can you stop yourself from getting a virus???How can you stop yourself from getting a virus???

You can stop yourself from getting a virus by installing anti-virus You can stop yourself from getting a virus by installing anti-virus software, or by not clicking on anything that looks a bit dodgy software, or by not clicking on anything that looks a bit dodgy e.g. if something pops up saying you’ve won a prize like an e.g. if something pops up saying you’ve won a prize like an Ipod touch then its probably a virus in disguise (a Trojan Ipod touch then its probably a virus in disguise (a Trojan horse) it may not be but its not worth the risk….trust me….horse) it may not be but its not worth the risk….trust me….

Are there any drawbacks to using anti-virus software?Are there any drawbacks to using anti-virus software?

Yes there are a few disadvantages to anti-virus software Yes there are a few disadvantages to anti-virus software including things like it costs a lot of money to install a good including things like it costs a lot of money to install a good one and it also could slow down your internet a lot when you one and it also could slow down your internet a lot when you put the internet on every day. put the internet on every day.

STUXNET...STUXNET...

What is STUXNET?What is STUXNET?It is a windows security worm that targets software and equipment.It is a windows security worm that targets software and equipment.

What did it do?What did it do?It infects the system, hides itself with a rootkit and sees if the

infected computer is connected to a Siemens Simatic factory system

Who did it?Who did it?There has been a few suspicions on who started stuxnet including There has been a few suspicions on who started stuxnet including

America and Iran.America and Iran.

Hackers… Hackers…

What is hacking?What is hacking?Hacking is when someone manages to get into your computer and Hacking is when someone manages to get into your computer and

access personal/ non public things that you don’t want anyone to access personal/ non public things that you don’t want anyone to know e.g. medical files, bank accounts or personal information.know e.g. medical files, bank accounts or personal information.

One of the most common ways of hacking is by sending a virus into One of the most common ways of hacking is by sending a virus into your computer through an email then once its in they have your computer through an email then once its in they have complete control of the computer and everything that’s on it.complete control of the computer and everything that’s on it.

What damage can hackers do?What damage can hackers do?Hacking can do a lot of damage mainly to the person that was Hacking can do a lot of damage mainly to the person that was

hacked more than the computer but it can be different hacked more than the computer but it can be different sometimes. The damage it can do to you is mainly the fact that sometimes. The damage it can do to you is mainly the fact that they can access your details and the biggest worry is your bank they can access your details and the biggest worry is your bank details because if they have them then they can use your credit details because if they have them then they can use your credit card to buy themselves things using your money!card to buy themselves things using your money!

Hackers...Hackers...

How can you stop hackers from being able to get onto your How can you stop hackers from being able to get onto your computer?computer?

You can stop hackers from accessing your computer by doing a few simple You can stop hackers from accessing your computer by doing a few simple things like installing a firewall, or simply turning your internet of at night can things like installing a firewall, or simply turning your internet of at night can sometimes prevent them from getting in.sometimes prevent them from getting in.

Backups...Backups...

There are lots of ways to backup your work There are lots of ways to backup your work including things like:including things like:

Floppy disks Floppy disks Memory sticksMemory sticks CdsCds DvdsDvds The cloudThe cloud

If you don’t backup your work then things could If you don’t backup your work then things could happen to it for example…happen to it for example…

Backups…Backups…

If you had your work backed up on a memory If you had your work backed up on a memory stick but you also had other things like photos stick but you also had other things like photos or things that take up a lot of room on it then or things that take up a lot of room on it then your work could be accidentally deleted. The your work could be accidentally deleted. The same could happen if you had it all saved on same could happen if you had it all saved on your computer then it just ran out of space.your computer then it just ran out of space.

Gary Mckinnon...Gary Mckinnon...

His only purpose of hacking was to prove the reality of UFOs.

Gary Mckinnon was a Hacker who was jailed for what he did Gary Mckinnon was a Hacker who was jailed for what he did to computers in the US.to computers in the US.

He hacked into the 97 US military and Nasa and he even He hacked into the 97 US military and Nasa and he even shut down over 200 computers in washington whilst he shut down over 200 computers in washington whilst he deleted the US navy weapons log.deleted the US navy weapons log.

BibliographyBibliography

WikipediaWikipedia Wiki answersWiki answers Stuxnet questions and answersStuxnet questions and answers