Doesn’t matter whether you call it back up or syncing. What matters is you do it NOW. Keep all your devices backed up. Doesn’t matter whether you choose to sync and back up to a computer or to the cloud or external drive or flash drive, make sure your critical information is backed up. Make sure you have a current back up of your computer. Make sure you back up your email contacts, your phone contacts and important files. We don’t always do it because we get busy. Build it into your routines as you do with any other important task. Put it in your calendar and do it.