I know that without encryption, a thief can access all files on my phone. Even if they can't get past my PIN code, they can always gain access via recovery. Assuming I don't have any locally stored photos or text messages of any interest, what should I be worried about?
I suspect Gmail keeps a local copy of recent emails, but is that stored in the clear? Even so, I don't think I'd be very worried if a thief could read my emails, though I'd prefer they couldn't. Similarly for Google Drive.
In general, would a thief be able to access my Google account to alter content or settings? Maybe there's some security token stored somewhere that a thief could somehow use to access to my account?
And then of course there is general app-specific data that may contain whatever the author decides to store. I'm mainly concerned about my Google account, but any insight on vulnerability of app data in general, and what might be done to mitigate potential loss, would be welcome.