Cookies are pieces of information a website can transfer to an individual's computer hard drive.
The information remains on your computer until you end your browser session or close down your computer. Most internet browsers are preset to accept cookies, but you can choose if and how a cookie will be accepted by configuring the preferences and options in your browser.
determine whether your computer has support for cookies turned on (this allows us to advise that you need to enable cookies to use a particular service)
help identify you during your secure session
time your session so you will be logged off if you are not using the service for a specified time period
maintain an audit trail of your secure session.