You’ll now be able to open and launch apps from anywhere under macOS Sierra, but be forewarned this turns off Gatekeeper and is not recommended for the vast majority of Mac users. You will now see the “Anywhere” option under ‘Allow apps downloaded from:’ Gatekeeper options.Relaunch System Preferences and go to “Security & Privacy” and the “General” tab.Hit return and authenticate with an admin password.Open the Terminal app from the /Applications/Utilities/ folder and then enter the following command syntax:.
How to Allow Apps from Anywhere in Gatekeeper for macOS Sierra This is not recommended for most Mac users, only advanced Mac users and developers who have the ability to accurately gauge app validity should use this method, which involves disabling Gatekeeper from the command line, thereby removing the standard Gatekeeper security mechanisms in Mac OS.
Despite that, with a little command line intervention you can reveal the third option and regain the ability to open apps that come from anywhere.
You can see this by going to the Security & Privacy preference panel, and under the “General” section you will not find such an option for Gatekeeper app allow settings.
To be clear, the “Allow applications downloaded from anywhere” option is hidden by default in Gatekeeper for macOS Sierra.