When you store a file, it is first encrypted on your computer and then chunked up and encoded into redundant fragments using erasure codes (Reed-Solomon codes).
A complete backup of your encrypted files is always kept on our servers, so that it can always be accessed and restored.
The Wuala cloud serves as an optimization that allows us to operate a large-scale infrastructure at low cost and to provide you with better performance.
Also, it allows organizations to get access to reliable online storage by providing their own resources to the Wuala cloud.