Computer Security Articles

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Antivirus & Firewall Solutions

Running Windows apps on computer connected to Internet without any anti-virus software is lunacy to say least. There are many viruses & worms, which are introduced through Internet to any PC. Your best investment for PC is your anti-virus software. It must as well be your highest concern to buy.

For benefit of new computer user, let us explain what virus scanner is. The authors of viruses & worms insert code in programs, which can do damage to target computer in case run. This code will come in a form of file with .exe extension on filename or else as Microsoft Word and Excel macro. All these are most famous delivery ways. What happens is that you may get email attachment or else your Internet browser may run script & it will invoke damaging code. The damages that are invoked depending on virus. Few may deny you more access to Internet. Few can even install their email sender & spread virus to everybody in Outlook address book by sending unsolicited mails with virus attached. Reason that you need antivirus program is it will catch introduction of this program in your PC & delete it or else isolate it in a few way. Folks work to find out attributes of new virus and after that write ways in antivirus software to detect virus or else worm. This is named detecting "signature" of virus or else worm.

Many new computers generally come with anti-virus package pre-installed and these pre installed anti-virus packages will come with 90-day evaluation license for automatic updates of the virus definitions. When 90-day period expires, and you are given choice to renew license for generally year or else if you do not want the product then you will buy other one. In case you carry on to use anti-virus program you my probably not get updates of the new signatures & therefore may not have the protection from any new viruses. In addition, this is where you will be wise to shop more to find antivirus scanning software that meets your requirements.

Freeware antivirus program is non-existent and usually if you find freeware anti-virus program it does not have important features. First feature is ability to scan for the viruses introduced in memory.