Kelly Higgins reports at darkreading.com that the Outlook Android app leaves email unencrypted and possibly vulnerable to discovery. "Outlook.com does have a PIN feature, but it only protects the user interface to the app, not the stored data on the file system," she writes.
The solution? Encrypt the data you store on your Android device and its SM card or use a 3rd party add on like SQLCipher.
I suspect the impact at UD is low, since I don’t think we have too many users of this app.