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Anti-Virus

Viruses.  Viruses. Viruses.  Although good prevention is necessary, it is impossible to completely prevent systems from becoming infected with a virus.  With all the viruses around, everyone needs good anti-virus software.  But what is anti-virus software, and what does it do?  

There is a wide variety of anti-virus software which use many different techniques.  Each has advantages and disadvantages.  In truth, a good anti-virus program utilizes multiple techniques and formats.  Not using any anti-virus software would be the worst thing to do. There is not one perfect program that suits everyone's needs.  

In choosing a program there are several things the user should consider.  
The software needs to be reliable and convenient to work with as a program.  This means that it should not take much user knowledge and should not cause technical problems.
The software should be able to detect all major viruses with good accuracy.  Programs that need updating should have a convenient and timely manner to do so.
The software should not slow down your computer or take several hours to complete a scan.  

The virus and anti-virus program writers seem to feed each others' jobs.  As anti-virus programs get better, the virus programmers work even harder write undetectable and efficient viruses. In turn, the anti-virus authors must create more clever programs.

In addition to anti-virus software companies, there are also virus labs on the Internet.  These are mostly run by anti-virus software vendors or organizations focused on viruses and computer security.  You can send any suspected viruses to the lab.  The lab will analyze the possible virus for identification, disassembly, and determination of source code.  If the suspected virus turns out to be a new one, the labs will place it in a database for others to know about.  They will also begin to develop anti-virus software to get rid of it.


Link to Computer Viruses Simplified