Ensure the Security of Mac OS X When Installing Programs

Gatekeeper - this name received a process that regulates the launch of all applications downloaded from the global network. It significantly increased the security level of Mac OS X Mountain Lion, in which it was introduced.
Its behavior is regulated by the settings on the General tab of the Security and Security section.

These settings in their hardest version allow you to install the program only if it was downloaded from the Mac App Store. The third option is the maximum degree of freedom - any program, regardless of the resource from which it was downloaded, will run unhindered, except for the timid attempt of the system to warn about possible consequences.

I advise you to stay in the middle and allow the launch of programs downloaded from Identified Developers. In this case, Gatekeeper prevents the launch of any application, the developer of which does not have a certificate issued by Apple, which almost completely eliminates the possibility of getting any nasty things on your machine (provided the “fake” certificate is not used to run the Trojan). In this case, you do not lose control over the device and retain the ability to run the desired program, even if it does not have Apple’s credentials.

You just need to find it using the Search option and right-click, then select “Open” from the menu that appears. This extra gesture will need to be done once because Gatekeeper only controls the first start of the downloaded file. But before making such a decision, ask yourself, do you really trust the source from which this application was received?

Really, do not download from the torrent trackers and install everything just because it’s free, you can get into big troubles with modern Apple malware. If the program is really good and you cannot live without it, think - do you really lack several dollars to pay for it and download a clean distribution from the developer’s site?