Small Business Computer Security, the Basics

Continued...

A Virus Makes Your Computer Sick

Virus: A computer virus shares some traits with an actual virus that gets people sick. A computer virus must piggyback on top of some other program or document in order to get executed. Once it is running, it is then able to infect other programs or documents.

Obviously, the analogy between computer and biological viruses stretches things a bit, but there are enough similarities that the name sticks. A computer virus can have many intentions. One common goal is the virus's desire to infect as many machines as possible. Some are harmless and are no more then an attempt for a hacker to spread their name and get recognition amongst their peers. However, this can still lead to slow computer performance or programs acting up.

On the other side of the coin, viruses can be extremely harmful and delete data, cause complete computer interruption, give someone unauthorized access to your company data, or even be used in conjunction with thousands of other infected computers to launch grand-scale attacks. Viruses are still mostly transferred via email; however newer attacks will entice you via an email to a malicious website that will exploit a flaw in your computer to install the virus.

Protection from Viruses: If you are reading this article, and you still do not have current (this is very important) anti-virus software running on EVERY single computer you own, then shame on you. With all of the marketing commotion that surrounds viruses, you should already have antivirus software on all of your computers. If you don't, then hurry to the store and purchase it.

Popular software in the antivirus market is made by Symantec (www.symantec.com) and McAfee (www.mcafee.com). Larger companies may look into a system that will scan emails prior to the email getting to a user's inbox for viruses. Also, be wary of what you open in your email. Do not open emails from people you do not know, and even if you do know the sender, take extra caution, as most viruses today will trick you into believing that the virus is sent from someone that you know.

Page 3: Battling Spyware: Keep Their Eyes Off
Page 4: Why Hackers Do What They Do

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