subject: Antivirus - A Precautionary Measure For Computers [print this page] Antivirus - A Precautionary Measure For Computers
It has been found that, only in the U.S., about 29% of PC users got affected by virus or spyware or malware or phishing scam at least once in the last 2 years. And they had to spend at least $100 to remove viruses from their computers.
Virus infections are more rampant for people who use internet. Without a proper antivirus or a firewall installed, their computers get attacked by dangerous viruses. The reason is quite simple - many users are still ignorant of the utilities of antiviruses or firewalls. They initially consider it as a waste of money, which proves to be fatal sometime. They come to reality only when they have to spend few hundreds of dollars to clean up their computers of harmful viruses. Prior caution could have prevented it.
So here is a little know-how of the advantages of antivirus.
We all know what virus, spyware, malware, and adware are. So what can prevent them? ANTIVIRUS!! Let's find out how does an antivirus work so that we can rely on it to save our computers from malicious attacks.
Nowadays all the commercially available antivirus companies have a list of virus names, which are in-built in the software. When the computer gets infected by a virus, the antivirus scans it and if it is a known match it disinfects it.
There is another way how an antivirus works. The software is made in such a way that, it will suspect every new movement in the computer. For example, you are trying to install a new software on your computer, the antivirus will ask you if it should be allowed or not. As a result if any new virus comes in, which is not in the dictionary, it also gets blocked.
This process is commonly known as suspicious behavior approach and the process of checking names is called dictionary approach.
Now a days all the antivirus companies have both these approaches inbuilt in the software.
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