On Zoom, there is a default setting that allows any meeting participant to share their screen without permission from an event’s host. Anyone who has a link to a public meeting can join. Links to public Zooms are traded in Facebook Groups and Discord chats, and are easily discoverable on Twitter and public event pages. For those hosting large, public group meetings, we strongly encourage hosts to change their settings so that only they can share their screen. But the platform was built as an enterprise technology tool, not a consumer social tool.

Source: New York Times March 20, 2020 23:15 UTC