For those of you who are not in the know, Gatekeeper is a new tool in OS X v10.8 (Mountain Lion) that is designed to help keep your Mac safe from malicious software. It recognizes whether an application was download from the App Store, a trusted source, or otherwise, and can prevent the app from launching. Today we are going to look at how to get to it and choose your settings.
How to get there:
- Click on the Apple on the upper left hand corner of your screen.
- Click on “System Preferences…”
- Choose the icon for Security & Privacy (a gray home with a vault door).
- Click on the General tab, if you are not already there.
- Find the words, “Allow applications downloaded from:” and choose the option you want (you may first need to disable security with your system password by clicking the padlock on the bottom left).
Choosing your option:
If you’re a bit confused about what these mean, here is a primer to help you choose.
- Mac App Store – If it is not in the App Store you won’t be able to install it at all. This it the best choice if you have young kids, irresponsible roommates or employees using this machine.
- Mac App Store and identified developers – If you also want apps from specific developers who are not selling their products through the App Store, then this is the way to go. No developer ID means no installation.
- Anywhere – This one explains itself. It’s the way your Mac worked previously, but is the least secure.
Now you can choose based on your security needs. Note that you can switch your preference for a specific install, then go back to your preferred setting once the app is in place.