Details about data privacy on Zoom Webinar

We are currently utilizing Zoom Webinar and need to restrict participation to specific individuals. To accomplish this, we must import participant data such as email addresses and names. Could anyone confirm if the imported data (email list) is secure and how it is safeguarded?

Our concern primarily pertains to the security and privacy policies associated with the email lists of participants we import into Zoom to regulate access to our webinars. Considering that these lists contain emails from various companies whose members will be attending the webinar, we are particularly concerned about the potential risk of data leaks.