With the new security settings Apple has introduced in OS X Mountain Lion, grouped in a preference panel called Gatekeeper, the company is focusing even more on its Mac App Store by giving users three levels of security: install only official store applications, install store applications and certified external applications, or install any application. And precisely to cover the certification process, Apple has introduced to its developers the Developer ID .
In other words, an application that is not available on the Mac App Store can be certified with that Developer ID, allowing it to be in that set of Apple-certified third-party applications. In this way Cupertino’s company wants to reduce the number of malicious applications for OS X , which increases as the number of users who decide to switch to Mac also increases.
All developers who have external applications will have to get a Developer ID if they do not want their applications to be relegated to the lowest level of OS X Mountain Lion security, something that users will try to omit simply to avoid vulnerabilities in their system. The certification to be used by the Developer ID can be entered in the applications using Xcode 4.3 .