With Snow Leopard, Apple added the ability to check files against known instances of malware. It was a very basic security measure, but over time, Apple developed it into the Gatekeeper system that is installed on all Macs today.
This prevented malicious sites from downloading and running apps without the user knowing about them. With the introduction of OS X Leopard, Apple added a new file quarantine service to protect users from various types of malware, with Trojan horses being a common issue back then.įiles downloaded to the Mac were marked as quarantined, and prevented from running until the user acknowledged that they had indeed intentionally downloaded the file and wished to run the app. In this Rocket Yard guide, we’ll look at how Gatekeeper operates, best use, and how to get around some of the restrictions Gatekeeper imposes. But sometimes, this tireless security system can get in the way of apps and extensions you need to run but don’t meet the sometimes strict requirements for getting past Gatekeeper. Gatekeeper does its job quite well, standing guard and helping to keep your Mac safe.
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