Gatekeeper is an anti-malware feature of the Mac OS X operating system. It was first included with OS X Mountain Lion. Gatekeeper allows users to restrict which sources they can install applications from in order to reduce the likelihood of inadvertently executing a Trojan horse. There are three options: allow only applications downloaded from the Mac App Store to be launched, allow applications downloaded from the Mac App Store and applications signed by certified Apple developers to be launched, or allow all applications to be launched.
- ↑ OS X Mountain Lion - Gatekeeper keeps your Mac even safer. Apple. Retrieved on 2012-02-21.
- ↑ Thursday, February 16th, 2012 (2012-02-16). Surprise! OS X Mountain Lion Roars Into Existence (For Developers Today, Everyone This Summer). TechCrunch. Retrieved on 2012-02-21.
- ↑ OS X Mountain Lion Gatekeeper: Can it Really Keep Malware Out? - International Business Times. Ibtimes.com. Retrieved on 2012-02-21.
- ↑ Jason Snell (Feb 16, 2012). Mountain Lion: Hands on with Gatekeeper. MacWorld. Retrieved on 2012-02-21.
- ↑ Mogull, Rich. TidBITS Tech News: Gatekeeper Slams the Door on Mac Malware Epidemics. Tidbits.com. Retrieved on 2012-02-21.