A recent report has come from Meraki informing their customers that an incorrect policy was applied and has resulted in data loss. This is not the first time a cloud based storage system has lost clients data.
It is always best practice to have your data backed up in multiple locations. Even if you are relying on a cloud backup solution is always in your best interests to cover your bases. Having a strategy in case an issue like this arises will cover you and your customers in the event of an issue.
You can read more about the incident on Meraki website.
The link i is provided below.