To change your security settings, see Protect your Mac from malware. lang=en style=height: 28px;Otkritie_prilozheniya_ot_neustanovlennogo_razrabotchika_na_Mac_-_Sluzhba_podderzhki_Apple_(RU)

Opening an app from an unidentified developer on Mac – Apple Support (UK)

When you try to open an application from an unidentified developer, you will see a warning. You can override the security settings and open the application.

Opening an app from an unidentified developer on Mac

If you are trying to open an application that is not registered with Apple by an established developer, a warning dialog box appears. This does not necessarily mean that there is something wrong with the application. For example, some applications were created before developer registration began. However, the app has not been tested, so macOS cannot determine if the app has been modified or corrupted since release.

Malware is often distributed in the following way: dangerous code is embedded in an application, and then the infected application is distributed further. An unregistered application from an unidentified developer may contain malicious code.

It's safest to download the new version of the app from the Mac App Store, or use an alternative app from an established developer. To run the application bypassing the security settings, do the following.

In Finder

on a Mac, find the app you want to open.

Don't use Launchpad for this. You cannot use the context menu in Launchpad.

Control-click the application's icon, then choose Open from the context menu.The application is saved in the list of exceptions from the security settings, and in the future it can be launched by double-clicking like any registered application.

Note.

You can also add a blocked application to the list of exceptions. To do this, click the Confirm sign in button in the General panel in the Security Security settings section. This button is available for about an hour after trying to open the app. To change these settings on a Mac, select the Apple menu item

System Preferences, click Security Privacy