The lock icon is an indicator that the page you are on is an encrypted page. This lock shows up in different places in different browsers. In Microsoft's Internet Explorer, FireFox Mozella and Google Chrome the lock appears to the right of the address bar at the top of the page. The lock will be shown in a closed position and in an unencrypted page the lock will be open.
Your security is important to us. We take appropriate measures, including advanced technology, to protect personal information collected against unauthorized access, disclosure, alteration or destruction. These measures may include, among others, encryption, physical access security and other appropriate technologies. We continually review and enhance our security systems to keep ahead of security threats.