Recent attention on video conferencing app Zoom and security exploits brings attention to the various Privacy and Security settings on your Mac. Currently macOS 10.14.5 Mojave defines microphone and camera settings which should be verified periodically if they’re not being managed by MDM (mobile device management) and even in those case, just to verify.
If you’ve ever had Zoom installed you must launch it and then update it manually, unless you have Munki or other patching solution to manage your Mac.
If you want Zoom to have access to your camera (useful for video conferencing) then enable it or leave it disabled until the moment you actually need it.
Maybe this is a good time to review what apps have previously been granted access and disable them or not after you review the situation.
Check your microphone access as well. What apps are in your list?
Also check out this past talk at MacDevOps:YVR 2018 by Kolide’s Zach Wasserman about osquery and at the 11min mark where he talks about another app BlueJeans and how to investigate it with osquery.
The MacDevOps:YVR videos from past talks contain many security related talks as well as other awesome troubleshooting tech talks.