When's the last time that you did a security update on your computer? 

Over time, most operating systems and applications will need to be updated for security related defects. With automated updating features such as Windows Critical Update most operating systems automatically notify users when patches become available. Regular application of these security patches can protect your computer from damage and losses caused by viruses that exploit vulnerabilities in your operating system or software.  It is a good practice to check your system on a regular basis for any critical security updates and any security fixes should be downloaded and installed immediately. 

Here are some links that will help you make sure that you're computer is protected:

• Microsoft's Security & Privacy:   http://www.microsoft.com/security/ 
• Microsoft Windows Update Center:  http://windowsupdate.microsoft.com  
• Apple Macintosh and Mac OS X Security information: http://www.info.apple.com/usen/security/index.html 
• Apple Security Updates: http://docs.info.apple.com/article.html?artnum=61798
• Linux Security: http://www.linuxsecurity.com/
  •  (For Linux based operating systems, check the system's manufacturer for specific updates)