Controlling data sharing, visibility, and access permissions within Microsoft Teams
Hello @Sophie F
Based on my understanding, your main concern is whether attendees in a Town Hall event can see each other's information, such as their email addresses.
If this is your concern, please note that Town Hall does not currently provide a feature to hide attendee information from other participants. If keeping attendee email addresses private is a requirement, a standard Teams meeting with the Hide attendee list feature may be a better option. Therefore, Town Hall may not be the most suitable choice if attendee privacy is your primary objective.
Additionally, as the organizer, you can view attendee information during the live event and monitor who is currently watching the Town Hall.
For external clients, if you would like to restrict attendance to a specific group of users and prevent unauthorized users from joining the Town Hall, the attendees would typically need to be invited and configured appropriately within your organization's access settings. This helps provide greater control over event access and ensures that only the intended participants can join the event.
I completely understand the appeal of the professional invitation and event experience that Town Hall provides. However, based on the scenario you described, a regular Teams meeting with the Hide attendee list feature may provide a better balance between attendee privacy. However, unlike Town Hall, it does not offer the same level of attendee management controls and so on.
Ultimately, each meeting type has its own strengths and limitations. While Teams meetings offer better attendee privacy options, Town Hall provides a more professional event experience and greater control over the audience. Webinars offer a professional registration and invitation experience; however, they are not designed to restrict attendance to a predefined list of specific users in the same way as a limited-access Town Hall. As a result, the best option will depend on whether your priority is attendee privacy, audience management, attendee restrictions, attendee interaction, or the overall event experience.
Please feel free to let me know if you have any further concerns about this matter.