Do you currently have internal documents on your servers that can be accesses through Google? Attackers can use Google to search your web servers for documents. I can currently pull back thousands of internal documents online!
Attackers use social networks like Facebook, Linkedin and Myspace to gain data about employees at companies. Information on these sites include birthdays, interests and even schools that you graduated from. Attackers can use this information to guess passwords. Some sites even ask this information for password resets.
What websites are your employees browsing at work? Have you heard of XSS? This stands for Cross Site scripting. It basically tricks your employees in thinking that they are on a trusted website. In the background the code is grabbing information off your desktop. It can also be used to trick the user into entering their password information on a website that looks like Bank Of America.
Orange County Computer Consultant can test the security of your network.