Password protect when join a meeting/conference

Currently, my Host number and Paritcipant number always the same. This allow someone that already join my meeting to dial-in on my other conferences. This method of meeting should not be use any more. Unless 1, we get a new random Participant number each time. 2, we can assign password. But this password should be require when dial-in also. Currently, no password for dial-in at all. I think we should have an option for this. For now, we can use RC meeting app to initiate a new random Meeting ID each time.