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TNCS-0041 - Granting Full Disk Access to ChronoSync in Mojave

September 20, 2018

Apple's macOS Mojave introduces stricter privacy safeguards that, by default, make it more difficult for third-party apps to access certain types of private data (e.g. Mail, Photos, Safari, Messages, etc.).  When a third-party app attempts to access some types of data (e.g. Calendars, Contacts, etc.), macOS will ask you if it should allow the app to access the data.

Access Warning

In those instances, you can simply click "OK" and macOS will forevermore allow the app to access that data without ever prompting you again.  However, there are other types of data that macOS will never ask if it should allow the app to access the data.  Instead, it will simply deny access to the app.  Obviously, this presents a huge problem for ChronoSync, since it needs access to all of your data, in order to back it up.  Fortunately, there is a way to grant ChronoSync access to all of your data, and it's called Full Disk Access.  Unfortunately, Apple has intentionally designed the process of granting Full Disk Access to be difficult, so that users are discouraged from granting Full Disk Access unless absolutely necessary. While it can be argued that most apps don’t need full access to your data, in the case of backup utilities, it is absolutely necessary that they have full access.

Here are the list of steps that you will need to take in order to grant Full Disk Access to ChronoSync:

  1. Exit ChronoSync, if it is currently running.
  2. Open the Security & Privacy Preference Pane in the System Preferences application.
  3. Click on the Privacy tab.
  4. Click on Full Disk Access in the categories list.
Full Disk Access
  1. Click the padlock in the lower-left corner to allow changes.
  2. When prompted, enter your credentials (username and password) for your admin user account.
  3. Click the + button to add an application.
  4. Navigate to where you installed ChronoSync (e.g. /Applications).
  5. Select ChronoSync.
  6. Click the Open button.

This is what it will look like when you have completed all the steps:

Allow ChronoSync Access


September-20-2018 - Created.