When you schedule a meeting the default setting is that 'Guests can join directly'. I'd like to see this changed to 'Guests wait in the lobby until the host admits them'. For any student using the mobile or desktop app they would need to be signed into their org Webex account to be automatically let in. As it is they don't have to be as the default meeting setting for Education Connector meetings is 'Guests can join directly'. This would provide better reporting on org account usage and reduce the likely hood of intruders joining if they had the meeting link.