2018/04/17 Myth Busting: Five Commonly Held Misconceptions About RA21 (and One Rumor Confirmed) Imprimir Cargar Compartir Enviar a un amigo facebook twitter RA21 aims to promote a modern, standards-based access management system that preserves patron privacy & control. It is important to dispel some myths about RA21 so we can move on from the outdated world of IP-authentication.