Do you encrypt data on your hard disk?
Have you ever tried to decrypt or hack that data?
I already know the answer to those questions. I too take for granted and trust that our software vendors know what they are doing. But do we have any type of guarantee?

An interesting read on this issue is at Computerworld : Data can leak from partially encrypted disks

Basically stating that many applications will write data outside the boundaries of encrypted sections of a computer's hard drive...argh!