I am using Boxcryptor on OS X in conjunction with Dropbox, and I don't seem to understand how the folder encryption works. As a test, I have encrypted a folder in my Dropbox as well as a file contained therein.
The file encrypts as expected - I can see it and open it from my Boxcryptor drive, and I can see it but NOT open it from my Dropbox folder in Finder.
The folder, however, is marked as encrypted but the folder itself doesn't seem to be off-limits in Finder. Nor does it automatically encrypt the contents of new files saved there.
I suppose my question is: What does encrypting a folder accomplish? Why would someone do it?