Registering a computer causes a cookie to be written to the computer. A cookie is a piece of data that a web server can store on a computer. For the electronic statement system, the cookie stores an encrypted value that identifies your account. The cookie file is set to automatically expire after 60 days. The presence of the cookie will override the advanced authentication mechanism built into the system. Advanced authentication will force a user logging in from a new location (or any location that doesn’t already have a valid cookie) to answer your security questions.

DO NOT register a computer that isn’t trusted, such as a computer in a public facility.