If you receive an InDesign error that Apple can't check an app or installer for malicious software, please try the following:

1. In the Finder on your Mac, locate the app/installer you wish to open. (Don't use Launchpad to locate the app.)

2. Control-click the app icon, then choose Open from the shortcut menu

3. Click Open

The app will be saved as an exception to your security settings, and you can open it at anytime by double-clicking it, just as you do with any registered app.

NOTE: You can also grant an exception for a blocked app by clicking the Open Anyway button in Privacy & Security in the sidebar.