We do not share any information with third partys, other than delivery information (name address and telephone number) with the delivery provider. Payment information with your chosen payment provider (for clearance of card payments etc.)
A "cookie" is a small piece of information sent by a web server to a web browser so it can be read back later from that browser. This is useful for having the browser remember some specific information and speeds up the process.
"Cookies" can only be accessed by the site that created them and cannot be used to get data from your hard drive, retrieve your email address or access sensitive personal information. It is possible to configure your web browser to warn you before accepting a cookie.