Network hard disks (NAS) in the test

Cloud storage services like Dropbox, iCloud and others are practical. But not everyone wants to deposit their data on the servers of some company. The alternative to cloud services: network hard drives (NAS), which you can expand into a private cloud at home. Stiftung Warentest tested eight solutions from four providers. Here you can read how well the private clouds can be operated via an app, how well they function - and how securely the data is stored. The test shows big differences.