Doesn't anybody else think it is a MASSIVE security fail that Nautilus quietly thumbnails all opened files in a single place? I can plug in a USB, or mount an encrypted volume, read some documents and Nautilus will put readable thumbnails into my (unencrypted) home directory.

My current workarounds
- turning off thumbnailing -- but I don't really want to
- removing .thumbnails and replacing with symlink to /dev/shm
-- this causes the 'normal', 'fail' and 'large' subfolders to get created on the RAM disk

I think it would be preferable to create a .thumbnails in each directory. Surely this would be faster, easy to manage size-wise, and -- most importantly -- it would ensure that the thumbnails enjoyed the same security status as the files from which they are derived.