A virus is a program – a piece of executable
code – that has the possibly of cloning itself. Computer viruses can spread
fast and they are hard to eradicate.
They can be attached to any type of file and they are spread as files copied and sent from person to person. They can be contacted from a flash drive, software installations or the internet, they can be launched when opening a program or accessing a file, any file, or they can be brought from the internet by downloading a file or accessing a web page and as attachments to e-mails.
Besides replication, some viruses have
something else in common: their infecting routine.
The behaviors of viruses vary from showing messages or images to destroying files, formatting the hard disk drive and other severe damage.
If the virus does not inflict damage it can still cause problems by taking up space and memory, lowering the performances of the computer. Nine rules for avoiding viruses would be:
3. Make sure your system is up-to-date with all the existent updates.
4. Keep your browsers security settings at maximum.
5. Never click yes when your browser asks you if you want to install or open some content coming from an organization you don’t know or don’t trust.
6. Install an anti-spy ware program to enlarge the protection.
7. Never install a browser help, Plugin or search bar unless it comes from a reliable source.
8. Use a different credit card for online shopping and keep it safe.
9. Don’t click on email attachments that are executable files even if they look as if sent from known persons.
The antivirus programs have a big
role in providing your computers security and protecting it from viruses, worms, Trojan horses and other “invaders” that can attack a computer.
The role of an antivirus program is to detect the presence of viruses in a computer, to disinfect the files or delete the ones that can’t be disinfected and prevent the contamination of the computer.
Most of the companies that
produce antivirus have online free tools for scanning computers for viruses. If
you don’t have an antivirus yet and can’t decide which one to buy you can enter
their online sites and try the services for free, then decide what to use.
They can be attached to any type of file and they are spread as files copied and sent from person to person. They can be contacted from a flash drive, software installations or the internet, they can be launched when opening a program or accessing a file, any file, or they can be brought from the internet by downloading a file or accessing a web page and as attachments to e-mails.
The behaviors of viruses vary from showing messages or images to destroying files, formatting the hard disk drive and other severe damage.
If the virus does not inflict damage it can still cause problems by taking up space and memory, lowering the performances of the computer. Nine rules for avoiding viruses would be:
1.
Use an anti virus program at all times.
2.
Install and keep an active firewall.
3. Make sure your system is up-to-date with all the existent updates.
4. Keep your browsers security settings at maximum.
5. Never click yes when your browser asks you if you want to install or open some content coming from an organization you don’t know or don’t trust.
6. Install an anti-spy ware program to enlarge the protection.
7. Never install a browser help, Plugin or search bar unless it comes from a reliable source.
8. Use a different credit card for online shopping and keep it safe.
9. Don’t click on email attachments that are executable files even if they look as if sent from known persons.
The role of an antivirus program is to detect the presence of viruses in a computer, to disinfect the files or delete the ones that can’t be disinfected and prevent the contamination of the computer.
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