Antivirus software

Antivirus software is software that protects a user computer from computer malware. Computer viruses may cause a lot of harm to a computer. Antivirus software needs to be updated often, because it needs to keep up with viruses that are made on daily basis.

An antivirus product may have heuristic virus detection method. Heuristic virus detection method work by detecting a virus not by a signature, but by behavior. For example certain system files need not to be accessed by other software, and if they do, than it is a good indication that a system maybe infected by a computer malware.

Antivirus software vary one from another, antivirus software may have different rating of detecting most common current viruses.

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