A cookie is a message given to a web browser by a web server. The browser stores the message in a text file. The message is then sent back to the server each time the browser requests a page from the server.
SFDBTs online services may use both session and/or persistent cookies.
Session cookies will be used to keep track of you whilst you navigate SFDBT’s online services; they will be deleted from your computer when you close your browser.
Persistent cookies will be used to enable SFDBT’s online services to recognise you when you visit; they will remain stored on your computer until deleted, or until they reach a specified expiry date.