The event organiser, GECCo, has the legal responsibility to tell ticket buyers and event attendees how their personal information will be collected and used. You can find their Privacy Policy below or contact them to request it.
Your email address will be added to the GECCo mailing list - however you will always be given the option to unsubscribe following each email.
No personal information will be shared outside of GECCo, it will only be used to manage the event itself for example allocating break-out groups.