title: What exactly does *NSFileProtectionComplete* mean?
body: <p>I'm looking at the <a href="https://developer.apple.com/library/prerelease/mac/documentation/Cocoa/Reference/Foundation/Classes/NSFileManager_Class/index.html" rel="nofollow">NSFileManager</a> class reference and I'm a bit confused by what <code>NSFileProtectionComplete</code> means. This is what the class reference says:</p>
  
  <blockquote>
    <p>The file is stored in an encrypted format on disk and cannot be read
    from or written to while the device is locked or booting.</p>
  </blockquote>
  
  <p>Does this mean that the file is stored in encrypted format on disk <em>always</em>... regardless of whether the device has a passcode (or similar security mechanism) set?</p>