We recommend enabling the following settings in your Zoom dashboard to prevent unauthorized participants from accessing your Zoom meetings.
1) In your browser, open your Zoom dashboard and navigate to the Settings page.
2) Enable the Waiting room option under In Meeting (Advanced) section:
This will allow you to control who has the ability to join your meetings in the event one of your Zoom Meeting IDs was obtained without permission.
3) Enable password protection for your scheduled Zoom meeting links.
If you're using your Personal Meeting ID for scheduled meetings, you will also want to enable password protection for personal meetings:
4) We also recommend enabling the Embed password in meeting link option so authorized participants can easily join your meetings directly from an email reminder or the Client Portal:
You can learn more about adjusting your Zoom security settings in the Zoom Help Center.