"Cookies" are small files that a website transfers to an individual's hard drive to be saved. Cookies allow a website to recall important information, making it easier for you to use the website. They're harmless for your machine. There are two types of cookies: session cookies, which are deleted when you close your browser, and persistent cookies, which are stored for a period not exceeding 13 months (except for certain audience measurement files) from your first visit to the Website. View details
They help to make a website usable by allowing for basic functions such as page navigation and access to secure parts of the Website. The Website cannot function properly without these cookies.