Our acquaintance over at Ars Technica answer lector questions, and this one seems like one many iPhone and iPad users will want answered, not to mention future OS X Mountain Lion users : How dependable is my data stored in iCloud ? Chris Foresman ’ sulfur suffice besides touches more broadly on the emergence of storage in the mottle vs. on-premises :

The simple suffice is that your data is at least a safe as it is when stored on any distant waiter, if not more so. All datum is transferred to computers and mobile devices using fasten sockets layer via WebDAV, IMAP, or HTTP. All data except e-mail and notes—more on that later—are stored and encrypted on harrow on Apple ’ sulfur servers. And impregnable authentication tokens are created on fluid devices to retrieve data without constantly transmitting a password .

iCloud stores photos in your Photo Stream, documents stored in iCloud, backups for io devices, @ me.com e-mail, contacts, calendars, Safari bookmarks, reminders, and notes, Foresman notes. Apple says all data is stored code on harrow except e-mail and notes. The exception for electronic mail may be due to performance reasons, including supporting features like searching messages on the server or partially download messages and attachments, he writes

Notes are besides not encrypted on iCloud servers. The reason is that iCloud presently syncs notes using IMAP, and a consequence of this method acting is that your notes are synced on Mac OS X via Mail. however, OS X 10.8 ( Mountain Lion ) will include a proper Notes app when it ’ mho launched this summer, so it ’ s possible that future Notes will use iCloud ’ south text file storehouse APIs, and these notes will be encrypted on harrow like the rest of iCloud data.

For now, though, it ’ s technically possible for an unscrupulous Apple datum center employee to rifle through your e-mail or notes. The likelihood is remote control, and Apple promises in its privacy policy that it “ takes precautions—including administrative, technical, and forcible measures—to safe-conduct your personal information against loss, larceny, and pervert, equally well as against unauthorized access, disclosure, revision, and destruction. ” Those who routinely send and receive messages of importance to national security—or fair the more paranoid among us—may want to consider a more dependable alternative for electronic mail and notes .

What Apple won ’ metric ton lecture about : The methods used to encrypt data on harrow. It claims to use industry standard practices to ensure drug user data is stored securely. Ars makes some educated guesses .
Have a full read of Ars Technica ’ s abject on how condom your data stored at iCloud is and share your thoughts : Is it it safe enough ? Do you trust Apple, or any mottle storage/sync supplier to keep your data dependable and private ?
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