OS X: Installing Applications from Unapproved Developers

Created on 06/13/2014
Modified on 03/17/2017
How to turn off the "unidentified developer" warning under OS X mavericks (10.9)

Update: March, 2017
With recent OS X releases Apple has removed the option, described below, to allow apps from "anywhere." Control-clicking on the app and selecting "Open" may allow the app to run.


In OS X "Mavericks" (10.9) Apple has a security feature called Gatekeeper that will prevent you from running applications from developers that are not approved by Apple. The Avervision document camera software is one example. If you try to open an application from a non-approved developer, you will get a message similar to the one below. This article will show you how to turn off this setting so you can open any application.

As always, be sure to only install software from trusted sources like the employee portal

Apple's gatekeeper message window "app can't be opened because it is from an unidentified developer."

Turning off Gatekeeper

1. Go to the Apple menu and select the "System Preferences..." 

Apple menu with "System Preferences..." menu item selected

2. In the System Preferences  window that opens, click on the  the "Security & Privacy" icon in the top row.

system preferences "security & privacy" icon

3. In the security preference window, make sure you are in the "General" area. Click on the lock icon so you can make changes. You will be prompted for your password. This is the password you use to log in to your computer.

Security & privacy preference panel

4. Change the selection from "Mac App Store and identified developers" to "Anywhere." You will get the warning pictured below. Click the "Allow From Anywhere" button and close the security & privacy preference window.

OS X security warning

5. You should now be able to open all applications, regardless of the developer. Remember, only install software from trusted sources like the employee portal.

os x   

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