from the for-secretive-tweakers dept.
agoston.horvath writes "I've written a HOWTO on replacing Mac OS X's built-in encryption (FileVault) with the well-known FUSE-based EncFS. It worked well for me, and most importantly: it is a lot handier than what Apple has put together. This is especially useful if you are using a backup solution like Time Machine. Includes Whys, Why Nots, and step-by-step instructions."
... protecting government infrastructure from computer attacks. (http://www.washingtonpost.com/wp-dyn/content/article/2009/12/22/AR2009122203789.html)... preventing leaks on blue prints/details of military hardware (prototype or otherwise) (http://www.usatoday.com/news/washington/2009-03-02-marineone_N.htm)
Fellow./ readers may be able to add a few more venues that need attention.