Enable waiting room.

Disable join before the host feature.

Enable mute participants on entry.

Manage screen sharing. Control who can share.

Manage the chat by controlling who can chat. 

Password protect meetings.

Turn file transfer off.

Do not publicly post meeting information.

Manage participants.

Lock the meeting.

Avoid using the personal meeting id to host public. meetings. Generate a new meeting ID.

Disable the ability for participants to record.

Store recordings to a secure location. If recording to the Zoom cloud, the recording should be password protected or available only to your organization.