Note, this DOES happen, however it doesn't happen in a constant outcome if tried in a multiple session.

If i were to move files from a secure folder, to another secure folder, there is a chance that the selected files will be corrupted.

I have personally recreated this by moving same set of files back and forth from A.sec and B.sec

My Google+ post here: https://plus.google.com/+ShahmiSaidi/posts/2tRpbsHtnVg

Please take utmost attention on this matter, dear developer. Thank you