How to enable waiting rooms in Zoom to prevent 'Zoom bombing'

Go to account management > account setting, and scroll down to the "Waiting Room" option. Toggle it on.

Once the setting is enabled, choose who it applies to. "All participants" puts everyone in the waiting room by default, and "guest participants only" adds people on different Zoom accounts or who are not logged in into the waiting room. You can also allow other participants to admit people from the waiting room.

Once enabled, waiting rooms can also be set up for specific meetings. To do this, first schedule a meeting.

That button takes you to a calendar of upcoming meetings.

There, check to enable the waiting room for just that particular meeting.

You can also enable a waiting room for all meetings with your personal meeting ID. Under meetings, go to your personal meeting room.

Click edit this meeting.

Make sure enable waiting room is checked, then hit save.

This is what meeting participants will see while in the waiting room.

As the host, control the waiting room by selecting manage participants.

Under "more," you'll have several option, including putting a person into the waiting room.

Once the meeting has started, people can be admitted from the waitlist under "manage participants."

Or, the entire waiting room can be admitted at once.

Clicking more on a video participant, they can be sent to the waiting room during the call.