Your conference stays yours
You keep ownership of everything you put into HiveConf. To run the service we need your permission to use it: you grant us a non-exclusive, worldwide, royalty-free license to host, copy, adapt for different screen sizes and print, and publish your event content for the purpose of operating HiveConf and letting attendees use your conference. That license ends when the content is removed, apart from copies in backups and change history that age out on their own.
Because we publish it, you also confirm that you have the right to give it to us — including photographs, logos, and biographies of other people, and anything you send us for turnkey setup. If you don’t hold those rights, don’t upload it.