Re: [nmglug] Is Zoom an open-source app?

No, it's proprietary and 'freemium' (only paid versions have the more useful features). You'll have to make your own judgment call around security; here are their claims on that: https://zoom.us/docs/doc/Zoom-Security-White-Paper.pdf Considering that there are free video-sharing applications, it is not like this service is not without replacement, so it's your call (I would go with Riot or something ¯\_(ツ)_/¯)