March 31 Mandel School Communication -Precautions against Zoombombing

Hi all,

Below is a message from UTech regarding 'Zoombombing' -- please read carefully about changes being made to Zoom on Wednesday, April 1. The change will impact both newly scheduled and previously scheduled Zoom meetings.


Cases of “Zoombombing” have started to hit Case Western Reserve University meetings, including classes. Zoombombing is when a malicious individual finds an open Zoom meeting link and enters the meeting to disrupt it verbally or by sharing inappropriate material.

There are simple actions you can take to protect your meetings. The most important is to never publish your meeting links or IDs on a public website or via social media. As an additional precaution and at the recommendation of Zoom, UTech will default all meetings to only allowing hosts to share content as of Wednesday, April 1. Zoombombers typically attempt to share inappropriate material once they enter meetings.

During an active meeting, as the host you can easily switch this Zoom setting to allow your students to share content:

  • Click the up arrow next to the "Share Screen" button
  • Select "Advanced Sharing Options"
  • Change "Who can share?" to "All Participants"
  • Close the window

You can also change the default for all of your meetings back to allowing participants to share content:

  • Go to, click "Sign in" and login with your University username and password
  • Under the "Personal" heading, click "Settings"
  • Click "In Meeting (Basic)"
  • Scroll down to "Who can share?" and change to "All Participants"

UTech has published a "Zoom best practices" guide with more details on ways to protect your meetings.


For assistance with any technology product or service at Case Western Reserve University, contact the University Technology Service Desk at or 216.368.HELP (4357) or visit

Thank you.

Eileen Connell
Director of Information Technology
University Technology, [U]Tech