Originally Posted by vaniaspeedy
Extremely well said (minus the part about not trying my tweak
Overall it seems like security and privacy has been successfully addressed on all levels. Awesome!
Security as discussed here still requires PHYSICAL security (not allowing access to the USB port). You need encryption to secure the device when not in your control.
The processor used in the K4 and k5 has hardware AES encryption, if we can learn how to use it. You can do software AES if slower access is acceptable. You can read more information on hardware available in the SoC chips in the freescale reference manuals.
One possibility may be to install truecrypt. Another may be to use AES protected ZIP files. There are many other options, but encryption is the key to privacy and security.