The Privacy pane in the System Preferences application allows you to see and change which applications on your system have access to your Contacts app. Sometimes, apps like to “grant themselves” access to your Contacts, which may not always be what you want. OS X does however require you to grant permission to an app the first time it seeks to access the Contacts app so hopefully, nothing should be slipping by without your consent. But it is a good idea to occasionally review which applications are accessing your list of contacts and revoke that access if appropriate.
To Manage Access to the Contact App
- Click from the menu.
- Click System Preferences
- Under the Personal area, click Security & Privacy
- Click the Privacy tab
- Click Contacts in the left pane. All apps that have access to the Contacts app are displayed in the right pane.
- To revoke access to the Contacts app, click the box next to its name to uncheck it.
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