There is no longer any reference to Azure in the document, but the language does not necessarily preclude continued use of that service. Previously, the document mentioned S3 and Microsoft’s Azure cloud computing service. The encrypted chunks of the file are stored, without any user-identifying information, using third-party storage services, such as S3 and Google Cloud Platform. The keys and the file’s metadata are stored by Apple in the user’s iCloud account.
The service is agnostic about what is being stored and handles all file content the same way, as a collection of bytes.Įach file is broken into chunks and encrypted by iCloud using AES-128 and a key derived from each chunk’s contents that utilizes SHA-256. iCloud features, including My Photo Stream, iCloud Drive, and iCloud Backup, can be disabled by IT administrators via MDM configuration profiles. Users set up iCloud by signing in with an Apple ID and choosing which services they would like to use. iCloud can also be used by third-party apps to store and sync documents as well as key values for app data as defined by the developer. ICloud stores a user’s contacts, calendars, photos, documents, and more and keeps the information up to date across all of their devices, automatically. Here is the entire iCloud section entry that includes the Google Cloud reference from the document in question: But the new document does explain a little bit about how the data is encrypted. Further Reading Report: Apple designing its own servers to avoid snoopingĪpple didn’t specify exactly what iCloud data is stored on Google’s servers.
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