I’m a big fan of “sparse bundle” disk images in Mac OS X. They allow me to create encrypted repositories for valuable data that can efficiently be rsync-ed between disks and don’t waste a lot of space. So I thought I’d write up a bit on what they are and how they can be used.
Mac Users, Secure Your Stuff in Dropbox
Encryption is an important tool for individuals regardless of what they’re storing. Given the recent security failings of Dropbox, I highly recommend using methods like this to secure your important data before using the service!