A developer signed an installer package in April 2017 and it’s still valid, but Apple signed a Catalina installer app in December 2019 and its certificate has now expired. This article explains why.
Apparency
Although macOS won’t tell, Apparency will, even down to launch constraints. Other alternatives, and how to check in the command line.
Confess, identify, solution, damage limitation, and reference – key elements in the information an app needs to provide the user when an error occurs.
Are additional Gatekeeper checks in Ventura effective, and worth the effort? Surely malware can bypass them easily.
The Eclectic Light Company 