Safe and Secure
All your data is encrypted during the backup process and is stored in Amazon S3 (Simple Storage Service) in an encrypted format. Amazon S3 has been designed for 11 nines of durability. It is stored in such a way that ensures your data is safe even if multiple data centers completely fail.
On your own server, it is unlikely that your data is encrypted and if your hard drives fail, without a backup, it is very time consuming and difficult to recover.