In the new macOS 10.14 Mojave update, Apple has made some privacy and security changes with their OS and as a result has changed the way Backblaze behaves. After updating to macOS 10.14 you will need to follow these steps to reenable Backblaze to back up your:
Photos, Contacts, Calendars, Safari, Mail, or other Apple items.
***First, Update To The Latest Version (5.4) of the Backblaze Client here.***
Giving Backblaze Full Disk Access After Updating To Mojave
1. After updating to the latest client, open the Applications Folder.
2. Open the System Preferences on your Mac by clicking the apple icon in the upper-left corner and select System preferences.
2. Click Security & Privacy settings.
4. Select “Full Disk Access” in the left-hand column.
5. If necessary, click the lock and enter your Mac’s username and password to allow you to make changes.
6. Drag the Backblaze app into the Full Disk Access location and release the Backblaze icon into it as show in the images below.
7. Restart your Mac. After reboot, once Backblaze does a hard drive scan it should back up everything that the Mojave upgrade excluded and your backup should remain safe!