What is Gatekeeper in OS X Mountain Lion
Posted on 16 February 2012.
The next version of OS X called Mountain Lion will be available this summer. Among the many new features, it will come with Gatekeeper that will help prevent users from unknowingly downloading and installing malicious software.


Gatekeeper is a new security feature that gives you control over which apps can be downloaded and installed on your Mac.

You can choose to install apps from any source, just as you do on a Mac today, or you can use the safer default setting to install apps from the Mac App Store, along with apps from developers that have a unique Developer ID from Apple. For maximum security, you can set Gatekeeper to only allow apps from the Mac App Store to be downloaded and installed.

Apple Developer ID

As part of the Mac Developer Program, Apple gives developers a unique Developer ID for signing their apps. A developer’s digital signature allows Gatekeeper to verify that their app is not known malware and that it hasn’t been tampered with.

If an app doesn’t have a Developer ID associated with it, Gatekeeper can let you know before you install it.





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