Computer Security! By Tiffy O’Connell Viruses Backup Hackers.
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Transcript of Computer Security! By Tiffy O’Connell Viruses Backup Hackers.
Computer Security!
By Tiffy O’Connell
Viruses
Backup
Hackers
Viruses
What is a Virus?
• A virus is a Harmful software sent through emails, websites and other internet based programs. They are unwanted and can delete files and
programs from your computer.
What Damage can a Virus do?
• It can delete your files
• It can crash your computer
• It can take over your computer
Different types of viruses
The most popular viruses are ones like the I U virus, the worm virus and many more which you’ve probably heard of.
File Infections- This virus infects programs with an .EXE or .COM extension.This is the what most viruses do now.
Worm viruses- this is a program very similar to a virus. It leads to negative effects on your computer.
Trojans/Trojan Horses- these are unlike viruses and do not reproduce or infect other files
There are also many more...
How can you stop Viruses getting on your computer?
To prevent viruses you can get anti-virus software but you will need to update this everyday as new viruses are made everyday.
You can also not open emails as this is the most likely source which will have one in.
Are there any drawbacks to using anti-virus software?
• You need to update it everyday or every two days.• They can not also work and if downloaded wrong definitely
don’t. • They are expensive
Stuxnet
This was discovered in July 2010
It was made by one or several nations
It was made to target nuclear systems
Transferred by USB
People affected:
Iran-62,867
Indonesia-13,336
India-6,552
US-2,913
Australia-2,436
UK-1,038
Malaysia-1,013
Pakistan-993
Japan-1 Figures taken from Wikipedia
Hackers
What is hacking?
Hacking is when someone breaks into your computer and can see your personal files, pictures and other private things.
What damage can Hackers do?
Hackers can steal credit card details and use them to buy stuff. They can also steal your identity and other documents and sell them.
How can you stop hackers!
You can use a password containing 6 or more characters containing letters and numbers to make it stronger. You can also install firewall as this will tell you when someone is hacking.
Backups
Why is it important to backup your work/information?
It is important to Back up your work because if you delete something you have a extra copy. Also in case you lose your memory stick and it’s only on that. It can save you getting into a lot of trouble.
What should you back it up to?
The best thing to save it to is probably a USB as this is portable, light and easy to transport. You can also back it onto a CD-ROM.
Where should you keep your backed up work?
If a USB you should keep it on you and you can do this to if it’s a CD-ROM.
How can you keep your backup safe?
Use a Password
DON’T leave on computer
DON’T Lose them
DON’T Give them to people
How to back up with a USB
Press save as then find your USB name and click.
Then name your file and press
save (my file is now there).
Thank you for watching!
Hope you now know how to keep you and your
computer safe!