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Chủ Nhật, 10 tháng 7, 2011

Securing Your Computer System

By Owen Jones


Today, more and more individuals are using their computers for everything from communication to online banking and investing to shopping. As we do these things on a more regular footing, we open ourselves to potential hackers, attackers and crackers.

While some may be looking to phish your personal information and identity for resale, others want to use your computer as a platform from which to attack other unsuspecting targets. Hereunder are a few easy, cost-effective steps you can take to make your computer more secure.

1. Always make backups of important information and store it in a secure location away from your computer.

2. Update and patch your operating system, web browser and software frequently. If you have a Windows operating system, start by going to windowsupdate.microsoft.com and running the update wizard. This software will help you find the latest patches for your Windows operating system. Also go to officeupdate.microsoft.com to locate possible patches for your Microsoft Office software.

3. Install a firewall. Without a good firewall, viruses, worms, Trojans, malware and adware can all access your computer from the Internet with no trouble. Consideration should be given to the advantages and differences between hardware and software based firewall programs.

4. Check your browser and email settings for maximum security. Why should you do this? Active-X and JavaScript are often used by hackers to plant malevolent programs into your computer. While cookies are relatively harmless in terms of security concerns, they can still track your activities on the Internet to build a profile of you. As a minimum precaution, set your security setting for the ?Internet zone? to High, and your ?trusted sites zone? to Medium Low.

5. Install antivirus software and set for automatic updates so that you receive the most recent versions.

6. Do not open unknown email attachments. It is simply not enough that you may know the address from which it originates because many viruses can be spread from a well-known address.

7. Do not run software from unidentified origins. Also, do not send these kinds of programs to friends and coworkers because they contain funny or amusing stories or jokes. They may contain a Trojan horse just waiting to infect a computer.

8. Disable hidden filename extensions. By default, the Windows operating system is set to ?hide file extensions for known file types?. Disable this preference so that file extensions show in Windows. Some file extensions will, by default, continue to remain hidden, but you are more likely to see any unusual file extensions that do not belong.

9. Turn off your computer and disconnect from the network when not using the computer. A hacker can not attack your computer if you are disconnected from the network or the computer is off.

10. Make a boot disk on a floppy disk or CD in case your computer is damaged or infected by a malicious program. Clearly, you have to take this precaution before you are subject to a hostile breach of your system security.




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