Here is some recent research on the strength of a multi word passphrase. http://www.lightbluetouchpaper.org/2012/03/07/some-evidence-on-multi-word-passphrases/

Here is some recent research on the strength of a multi word passphrase. http://www.lightbluetouchpaper.org/2012/03/07/some-evidence-on-multi-word-passphrases/ http://www.lightbluetouchpaper.org/2012/03/07/some-evidence-...