Enhancing your Computer Security
A computer virus is a malicious piece of code whose intention is to disrupt your computer. Often, viruses transmit your personal information (passwords, for instance) to the creator or to other machines on the Internet. Viruses can also enable remote and unwanted users to take control of your machine. Some hackers use your computer to spread other viruses and spam while others may be in search of money and personal information.

Short of disconnecting from the Internet, what can you do to eliminate your exposure to viruses and spam? Although it can be difficult to completely eliminate these digital nuisances, there are some preventive measures you can take:

• Install and use a firewall
  There are two types of firewalls: physical and software. A physical firewall runs on the networking equipment (router or switch) which you use to connect to the Internet. These help prevent your computer from being visible and accessible to the outside world. A software firewall runs on your own machine and helps to prevent outside users from gaining access to your files.
• Use anti-virus software
  Purchasing and installing anti-virus software is only the first step. You must make sure to keep the virus definitions up to date (usually, by running the software itself while being connected to the Internet).
• Use anti-spyware software
  A second type of malicious code is spyware. These programs may look harmless, but they spy on what you are doing online, where you go, and even can track your personal information. There are many good anti-spyware programs that can help keep your machine free of such bugs.
• Use an updated browser
  Old and out-of-date browsers are security risks to both your computer and the network you are on. Additionally, the most current browsers have pop-up blockers and other security measures built in to help your machine run faster and be less vulnerable to cyber attacks.
• Be cautious
  Use your best judgment when opening emails from unknown senders. Attachments from addressees you don’t recognize may contain viruses. If you are in doubt, use your anti-virus software to scan suspect email. Similarly, when browsing the Internet and downloading files, take advantage of the security measures discussed above to help cut down on your risk level.