Update from Symantec: Upon further analysis and investigation we have verified your submission and, as such, the detection(s) for the following file(s) will be removed from our products:
File name: ConnectWiseControl.ClientSetup (1).exe

I've reported a false positive to Symantec. 

Hi ASimm, 

Unfortunately, we're at the mercy of Apple and their security decisions. We've done what we can do smooth the process of remotely connecting to Macs, and will continue to look for ways to improve this process as later Catalina versions come out. However, as with Mojave, it is required that some manual intervention take place on the end users machine. However, some users have reported that with Apple MDM you can setup/deploy your own privacy policy that whitelists the application, which allows you to remotely approve the use of CW Control without any enduser intervention on the first connection. There is some discussion of that in the thread above.

Best, 

Caitlin 

Catalina updates are out! Check out the Output Stream for more information.