How to open apps from unidentified developers on macOS SierraWhat happened to the Gatekeeper setting that let me open apps from anywhere? It's not gone, it's just hidden.
Apple's security system, Gatekeeper, has a feature that restricts the type of apps that can be downloaded onto a Mac. By default, Gatekeeper only allows you to download apps from the App Store. You can change the settings to allow downloads from the App Store and from identified developers, which are developers that have at some point registered with Apple.
It used to be that you could change the Gatekeeper settings to allow apps downloaded from anywhere, but Apple removed that option in macOS Sierra. So, now, you have to allow app downloads on an individual basis by confirming your permission when you try to open one.
There is a way to get back to Gatekeeper's previous settings, which allow you to download apps from anywhere, by using a terminal trick, which we'll show you in a minute.
But first!
How to open an app from an unidentified developer
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How to open apps from unidentified developers on macOS Sierra
