For example, if you type your bank account number into a form on a web page and then submit that information to a server operating with security features, Navigator automatically encrypts the information you send and decrypts any information you receive. For encryption to be in effect, you must be interacting with a server that offers encryption.
Communicator also offers security features in email, such as the ability to sign an email document.
Navigator keeps track of trusted sites by storing digital certificates for those sites, described below. You can tell if a server is secure by examining the Security icon, which appears as a button both in the lower-left corner of the Navigator window and on the Navigation toolbar. A closed padlock indicates that you are viewing an encrypted document. An open padlock indicates an unencrypted document. Click the padlock icon or the Security button on the Navigation toolbar to display the page's security status.