Here is a security "feature" of MacOS Sierra that some people are going to be unhappy with.
Starting with macOS 12, Apple is making it more difficult for unsigned apps to be launched. The option, present in OS X 10.11 to always allow unsigned apps to open has been stricken from Gatekeeper, limiting users by default to App Store and App Store plus identified developers. The ability by users to launch unsigned apps remains in the operating system in a different form, however.
Double clicks will no longer work to open an unsigned app. Users must control-click, or right-click, and select open, and then authenticate user credentials. Additionally, while there is a pointer to the app wherever the user has installed the app, the app itself is stored elsewhere in the drive in a "random" fashion, effectively preventing the Gatekeeper Bypass vector of attack from functioning.
I certainly hope Apple provides us with a workaround as they did with SIP!
Enabling protection from ourselves is one thing, but they're still
OUR Macs...uhhh...I hope. (If it's iron-clad, the change suggests that do-it-yourselfers will no longer be able to run their own creations on their own machines without first getting permission from Apple.)
