One positive thing about all these horrendous security flaws that have been recently discovered in Zoom, due to its popularity, is that the company seems to be taking them seriously, recently instituting a feature freeze to focus on fixing them: https://blog.zoom.us/wordpress/2020/04/01/a-message-to-our-u...
As a consequence, I suspect Zoom's security is more likely than not to improve going forward... although it will surely take a long while. Security is Capital-H Hard.
Also, I cannot think of any other multi-video-conferencing solution that "just works" and has been as thoroughly stress-tested and attacked by bad actors in the wild at such a large scale. If Zoom does a decent-to-good job fixing all the security issues, it looks likely to continue to dominate its market.
As a consequence, I suspect Zoom's security is more likely than not to improve going forward... although it will surely take a long while. Security is Capital-H Hard.
Also, I cannot think of any other multi-video-conferencing solution that "just works" and has been as thoroughly stress-tested and attacked by bad actors in the wild at such a large scale. If Zoom does a decent-to-good job fixing all the security issues, it looks likely to continue to dominate its market.