How to: Set Up Zoom Security Settings 

Zoombombing is a form of trolling in which a participant uses Zoom’s screensharing feature to interrupt and disrupt meetings and classes. 

  • To report any issues of Zoombombing, contact the USC Security Operations Incident Response team at security@usc.edu. 

Zoom Screen Share Settings 

Use the recommended screen-sharing settings for your Zoom meetings to reduce Zoombombing. 

  1. Sign into usc.zoom.us. 
  1. Click Settings. 
  1. Click In Meeting (Basics). 
  1. Scroll down to the screen-sharing options and make the following selections: 
  • Screen sharing: Activate 
  • Who can share?: Host Only (With this selection, you will be able to manually activate screen sharing for participants in a live Zoom call.) 
  • Disable desktop/screen share for users: If you need to allow screen sharing during your Zoom meeting, you can change settings in the live meeting to enable screen sharing. 
  • Annotation: Enable, but following these guidelines: 
  • Annotation cannot be activated in a live meeting if it is disabled in Settings 
  • Whiteboard: Enable and select auto save. Follow these guidelines. 
  • The whiteboard cannot be activated in a live meeting if it is disabled in Settings 
  • Disable: Disable 

Enable Screen Share for Participants in a Zoom Meeting 

Follow the steps to allow participants to share their screen in a Zoom meeting when your default setting for participant screen sharing is disabled. 

  1. Start your Zoom meeting in the Zoom app. 
  1. Allow authorized participants into the meeting from the waiting room. 
  1. Place your mouse in the Zoom meeting window. A bar will appear. 
  1. Next to Share Screen, click the up arrow -> Advanced Sharing Options…. 
  1. On the pop-up screen, perform the following: 
  • Select One participant can share at a time. 
  • Select All Participants. 
  • Select Only Host. 
  • Click X. 

Your participants will now be able to share their screens. As the host, you will be the only participant in the meeting who can start sharing while another person is sharing. 

Disable Chat in a Zoom Meeting 

Follow the instructions to disable chat in a Zoom meeting. 

  1. In the Zoom meeting window, click Chat. 
  1. In the Chat panel, click the three dots. 
  1. In the pop-up window, click No One to prevent participants from chatting in the meeting. 

Managing a Meeting 

Once the meeting has started, the meeting room is still active. 

If you wish to return a participant to the meeting room: 

  • Click More 
  • Click Put in Waiting Room 

If you want to remove a participant from the meeting, follow these steps. 

  • Click More  
  • Click Remove. 

Lock a Meeting 

When you lock your meeting, no additional participants can enter your class. 

  1. While in a meeting session, click ‘Participants’ at the bottom of your Zoom window. 
  1. In the participants’ pop-up box, select (a) More and (b) Lock Meeting. When the meeting is locked, no new participants can join, even if they have the meeting ID and password.