We ask only for your name and email address when you register an account. This is so we can send you any data you order and keep you informed of any subsequent changes (for example if a dataset you've ordered has been replaced by a newer version or errata/addenda are published).
We may also use your information to contact you with announcements about CEH services - for example, if the data catalogue is undergoing maintenance which means it will be unavailable for a while.
We never supply your details to any third party.