When you add extra security to your computer, a secure cookie will be placed on your computer. This secure cookie is unique, and when used in combination with your login information, creates a unique way to identify you to the system.
For every login attempt after you add extra security to one computer, this secure cookie is validated along with the login identification you normally enter. This secure cookie is only used by Third Federal Savings and Loan to validate your identity and does not contain any personal information.