While Installing the latest update of rhino 7 for Mac f-secure sees it as a trojan and it will not install, same for the current installer of rhino 7. The only way to circumvent this is to turn off your protection while installing. Not sure if Mcneel can " fix" this I will also report this to F-Secure.
Thanks for posting. This is not something that we control, no. We frequently have to request people to disable a virus scanner to install Rhino.