Noise unwanted in zoom meeting
I had an unwanted noise for the first time in my zoom class that I could not identify. Was very annoying. Could not determine where it was coming from. But, following the zoom meeting, I received an email that someone had joined my meeting without permission. Didn't know who it was. Never saw a person on the zoom. Didn't recognize the name. How can I prevent this person from disturbing our class again? Thank you
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