Secure publicly advertised Zoom meetings

Publicly advertised Zoom meetings are at increased risk of interruption and Zoombombing. The best way to secure a public Zoom meeting is to convert it to a webinar. To get started, submit a webinar request at, or contact Learning Spaces Support.

If you choose to promote a Zoom meeting through public channels (for example, websites, social media, flyers), UITS recommends specific measures to retain control of your meeting. You can either:

  • Require IU authentication. Everyone joining will be conclusively identified so that the Dean of Students or Human Resources can address inappropriate behavior; or:
  • Change the participation settings for your meeting:
    1. Disable non-host participation:
      1. Disable participant video on entry.
      2. Disable participant audio on entry.
      3. Disable participant screen sharing.
      4. Restrict chat.
    2. If interaction is necessary, ask a co-host to serve as the moderator and manage participants. Participants can raise their hand when they want to ask a question, and the moderator can temporarily allow them to turn on their microphone.
      The moderator will have no way of knowing if a given participant is malicious or genuine.
    3. Disable "Annotation" in your Zoom settings.
    4. Add presenters as alternative hosts when you set up the meeting; be sure to use their Zoom accounts.
    5. During your meeting, do not promote any participant to the host or co-host roles.
    6. Enable the waiting room.
    7. When you join your meeting, before admitting any participants, click the Security icon in the lower toolbar, and then:
      1. Uncheck Share Screen.
      2. Uncheck Chat.
      3. Uncheck Unmute Themselves.
      4. Uncheck Start Video.
    8. As a precaution, be prepared to remove participants.

Report instances of Zoombombing to the University Information Security Office (UISO) as described in Report a suspected information or information technology (IT) security issue at IU.

For assistance or more information, contact Learning Spaces Support.

This is document bhox in the Knowledge Base.
Last modified on 2022-03-23 14:48:29.