Right, it's so easy and quick to duplicate a SD card with this hardware, by only unplugging it from the board... If it's not stored under your bed, it can be useful :p
And 2nd, it can be a cool challenge to make it working ? To understand how those security softwares and how to config them nicely is really cool. It's always good to make your head thinking about a new way you don't know ;) And exploring some new things you never seen working... and sharing informations you found with others by trying to make it work.
By this way, if I become more friendly with encrypting data and system with this test, it will be useful for future RPi installs, like mail servers and other stuff to secure by encrypting personal data... hosting some friends backups for example...
Thx ;)
Duncan Guthrie :
Disk encryption only prevents physical access - are you at risk of this?