If you're not using your own backup solution on your own hardware, located on your own property, you're failing IT 101. Any cloud service can change their Term

If you're not using your own backup solution on your own hardware, located on your own property, you're failing IT 101. Any cloud service can change their Terms of Service without notice, and those changes are almost always detrimental to customers. Seriously, move your saved data in-house. Cloud drives are for ignorant consumers.