There are many sources that can implement a virus onto the internet, but one thing is definite, someone or something must've uploaded the virus onto a public area of the Internet and the virus is intelligent enough to install itself to your computer (whether it was intentional or not). Most of the time, the virus has the ability to duplicate itself onto several webpages. Once it gets onto a computer, it can attempt to spread itself throughout the local network and/or through removable data storage (eg. flash drives).
Websites can get infected, if someone gets the password to handle the files there. Someone may replace content with infected one. But if you have a strong password on your management system, You wont get any viruses. And there will never be viruses if you dont get them there :)
The Macro virus is the most common type of computer virus. The ILOVEYOU virus is one example of this type of virus which hides in a document or spreadsheet.
40% of computer users have been infected by a virus.
Yes, if the removable disk is connected to your computer then it will be infected.
They can only if they are infected with the virus.
No, you will not be infected in that manner.
yes
no
From infected websites and through emails. Virus are usually in programmes that you have to run, like .exe and .scr files.
When you open a website or download a program that is infected with a virus.
Yes, most of the computer virus have security threat to the infected computer. If your computer has been infected with virus, you should remove it quickly.
Get a good protector for your computer that blocks viruses (I suggest Norton) and don't visit websites that seem sketchy
norton anti virus of course