Are any passwords safe?

Interesting article on how to recover or find forgotton passwords on your Windows / Mac computer. 

I was very surprised to find out how easy it was to gain access to both Mac and Windows passwords.  Seems that to really be secure these days is quite difficult as even encrypting your entire OS still does not always do the trick.

http://lifehacker.com/5854079/how-to-break-into-a-computer-and-prevent-it-from-happening-to-you