Specific error messages
Skip information indexCannot be opened because it comes from an unidentified developer
This error occurs in the Macintosh operating system when trying to open a help program installed from the Tax Agency website.
In order to install the program it is necessary to give execution permission from the security settings. To do this, go to "Security and privacy" within "System Preferences" in Applications.
Check the "Any site" option in the section to allow downloaded applications (by default the "Mac App Store and identified developers" option will be checked).
After downloading and installing the program, we recommend that you return to the original permission settings to avoid security problems.