A cookie is a small file which asks permission to be placed on your computer's hard drive. Once you agree, the file is added and the cookie helps analyse web traffic or lets you know when you visit a particular site. Most users will often have their web browsers set to accept cookies by default.
Overall, cookies help us provide you with a better website, by enabling us to monitor which pages you find useful and which you do not. A cookie in no way gives us access to your computer or any information about you, other than the data you choose to share with us.
You can choose to accept or decline cookies. Most web browsers automatically accept cookies, but you can usually modify your browser setting to decline cookies if you prefer. This may, however, prevent you from taking full advantage of the website.
Should you wish to find out more about disabling cookies, you can click on the relevant link below for your browser: Internet Explorer | Firefox | Google Chrome | Safari (OS X) | Safari (iOS) | Android