Security guru Bruce Schneier says Zoom has cleaned up its act a lot, judging by recent surveys of video conferencing apps by the NSA and Mozilla:
The company has done a lot of work addressing previous security concerns. It still has a bit to go on end-to-end encryption. Matthew Green looked at this. Zoom does offer end-to-end encryption if 1) everyone is using a Zoom app, and not logging in to the meeting using a webpage, and 2) the meeting is not being recorded in the cloud. That's pretty good, but the real worry is where the encryption keys are generated and stored. According to Citizen Lab, the company generates them.
There is nothing in Zoom's latest announcement about key management. So: while the company has done a really good job improving the security and privacy of their platform, there seems to be just one step remaining to fully encrypt the sessions.
The other thing I want Zoom to do is to make the security options necessary to prevent Zoombombing to be made available to users of the free version of that platform. Forcing users to pay for security isn't a viable option right now.
So, we'll keep using Zoom (mainly because everyone else is). And maybe, in the future, we'll have a serious discussion about security and privacy regulations in the US.