I store sensitive data in Dropbox using an OS X encrypted disk image in my Dropbox directory. It's not an elegant solution, but it gets the job done. I mount th

I store sensitive data in Dropbox using an OS X encrypted disk image in my Dropbox directory. It's not an elegant solution, but it gets the job done. I mount the password-protected disk image when needed, access the data, and unmount when finished. Upon unmounting, Dropbox syncs the encrypted blocks to S3, other computers, etc. (Encrypted disk-images can be fairly handy. I picked up the trick from a friend and colleague who used them to protect email and other sensitive documents on his laptop. E.g. he sym-linked Mail.app's mail directory, ~/Library/Mail, to the disk image.)