Paul,
Zoom issued a reassuring and lengthy statement in response to these security issues just last night: https://blog.zoom.us/wordpress/2020/04/01/a-message-to-our-users/.
About a year ago, another zero-day security threat was discovered and handled quickly. We trust that Zoom understands well all that is at stake at this time.
All my best,
Suzanne Cadwell
Director, ITS Teaching & Learning.