Updated: July 2018
Cookies are pieces of data stored on your hard drive that record information about how you interact with a website so that, when you revisit that website, it can present tailored options based on the information stored about your last visit. Cookies can also be used to analyze traffic and for advertising and marketing purposes. Cookies are used by nearly all websites and do not harm your system.
You can set your browser to refuse all or some browser cookies, or to alert you when websites set or access cookies. If you want to check or change what types of cookies you accept, this can usually be altered within your browser settings. You can view, delete and block cookies at any time by by accessing the privacy settings of your browser.
Cookies are either:
Session cookies: these are only stored on your computer during your web session and are automatically deleted when you close your browser – they usually store an anonymous session ID allowing you to browse a website without having to log in to each page but they do not collect any personal data from your computer; or
Persistent cookies: a persistent cookie is stored as a file on your computer and it remains there when you close your web browser. The cookie can be read by the website that created it when you visit that website again. We use persistent cookies for Google Analytics.