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Installing unsigned apps on OSX 10.8 Mountain Lion
Problem
If you have installed Apple’s new operating system (Mountain Lion), you will notice that you won’t be able to install software which hasn’t been signed by an identified developer or downloaded via the Mac App Store (this is also known as Gatekeeper). They do this to counter the growing amount of malware that is bugging OSX the last couple of months. As the option is turned on by default, you have to find where to shut it off to download unsigned content (especially older apps).
Solution
Go to System Preferences < Security & Privacy < Tab ‘General’
You will see ‘Allow applications downloaded from’ greyed out, so first authenticate by clicking on the little padlock at the bottom left of the window.
Select ‘Anywhere’ instead of ‘Mac App Store and identified developers’
You’re done :-)
About the Author
👋 Hi, I'm Frederik Jacques, a passionate iOS developer and entrepreneur with over a decade of experience building innovative mobile applications.
I love creating apps that solve real problems and bring joy to users. From educational tools to creative meme makers, I'm always exploring new ways to blend technology with user experience. When I'm not coding, you'll find me sharing insights about iOS development, app monetization, and the indie developer journey.